my two cents on camera placement:
I learned the hardway of just slapping up cameras without the thought of catching faces. I just wanted a wide field of view to see if someone is poking around. What happens if a person is poking around? You then want to see the face to attempt facial ID for the police! I didn't think of that 2nd part. So all my cameras I initially bought were 2.8mm wide field of view.
Varifocal will cover all your needs, especially the 5442 series. Can do upto 30mm or 60mm varifocals for that long distance 100'-300'.
PTZ's are also a valid option to consider for your camera arsenal due to their tracking and zooming abilities.
Everyone above mentions great advice. The only thing I'll say is try to put your mindset inside of a burglar/intruder. Which way seems easiest for this person to approach? Is there lighting somewhere out there that may influence the person's apprach? Which area is most critical to you?
Looking at your two pictures:
1.) the northern side of your house has a much larger yard area than south. Does this look more attractive pathway for a intruder?
2.) I would put 4 cameras on the front.
#1 - pointing 45 degrees southeast from south-garage-corner. Center of image would be the beginning of your property / end of your neighbor's driveway along that sidewalk. Set around 6'-7' high to catch a person's face as they approach your property with head held high (hopefully, the perp does not enter 'burglary' mode yet at this point so is not ducking/hiding face with baseball hat). Main duty: facial ID of folks on the south sidwalk walking into your area from afar.
#2 - pointing almost straight north from the north-garage-corner to where your map picture starts with the sidewalk. Same philosophy. Though a greater distance for a 12mm Varifocal so may have to center image to a closer position than directly north. My concern would be the big yard area between the houses and the mindset of a intruder. Looks more inviting than the southern side. main duty: facial ID of folks on the north sidewalk entering your domain from afar.
#3 - Here is the tricky part. Sure, a single camera could be centerline of driveway for a general overview but will be placed above the 8'-9' garage door structure (not so great for facial ID and would have to cover a wide area). Works for many folks. I went the extra UMPH. Gots a 3.6mm 5442 centerline at the 9' mark. Plus, 2 more older 5231 cameras left & right side driveway at the 5' mark (these are 100% B&W at night but still super duper). The 5' high cameras main duty are facial ID's. Centerline 5442 main duty is to see what the intruder is doing and possibly catch a facial ID. Sometimes, I have visitors in my 2 car wide driveway. If I just had centerline, someone could sneak along the side of a vehicle and I wouldn't be able to catch the facial ID or other information. This is solved with the 3 camera setup.
#4 - if can afford it, top off your front with a PTZ that covers all bases. Dahua SD4 series is the best bang for your buck with auto-tracking. Later series can do full color and other bells/whistles but with bigger price tag. The standard cameras would act as spotter cameras for the PTZ (meaning, if a standard camera triggers, the PTZ will react to the same area and start auto-tracking).
3.) Sides. 1 at the corner of north-west-rear of house to watch over the north house wall and that big yard area. 1 at the corner of south-west of house to catch stretch of yard between you and southern neighbor.
4.) Rear. Gotta keep in mind that there is usually a patio door back here. A nice bullseye for an intruder. Or a shed full of
tools & tractors, or even a pool. You do the criss-cross method as mentioned above by others. And a general centerline camera right above the patio door (this could be a 2.8mm as wide field of view).
If you can not do all these cameras at once, go piece meal. Pick critical areas to cover and purchase additional cameras later.
For weather proofing, I use dielectric grease for any outside connection and I throw on 4" piece of 1" shrink tube over the entire connection. Here in northen Nevada, we get 60+mph gusts of wind with rain/snow. I like the extra protection.
I am one of the rare ones that have cameras on the inside. One camera in the kitchen with primary focus on patio doo. One camera in living room with primary focus on front door. One camera looking down my 2 story stairwell and top landing. 3 cameras in my garage workshop (I have 4k ones in here for specific purposes). Not concerned about running around in my birthday suit, neither are any visitors. These inside cameras were the first cameras I bought from Andy...4231-ASE 's? When I upgrade to 5231's, didn't want to get rid of these so repurposed them for inside duty. But, best check with wife on this. I think I heard that married couples do romantic things all across the house at specific monthly intervals. I find that hard to believe but hay...that's why I am a bachelor
The point being, if someone gets into my house...I kinda want to see what they are doing or not doing.
For front doorbell camera, I opted for the Dahua VTO villa intercom. It has a 720p main camera (should be 1080p but that's a different story). It does it's job for what it was built for. With the added benefit of intercoming VTH remote terminals through out the house. I do wood working in my garage. When someone hits my doorbell when I have a loud tablesaw running with my ear muffs on, the Dahua VTO alerts the remote VTH in the garage. I plan to incorporate this into Home Assistant (home automation) so that a light bulb blinks as well. I initially used the infamouse Looney boobie cam (dual camera) which worked fantastic for the 2 different camera angles. That has also been repurposed to my workshop.
Lastly, as mentioned above...cameras will show you what was broken into when you wake up the morning after. This is important to understand. It's not a magical "this will stop them for sure!". However, since you are going for the Vista alarm panel, you get extra benefits. Through the alarm panel IP network card (optional card that you buy), and if you get into Home Assistant (or other home automation software)...you can get notified while at home within 1 second if a human has been triggered from any camera or any alarm system component (outdoor PIR, front door sensor) and have all your cameras displayed on your bedroom smart TV. If interested in that, I can help but it's a little bit too much to get into since you are just starting out
Mind you,
Blue Iris software can also notifiy you via text message & picture or other ways to your smartphone when you are at work or grocery shopping.