you need to take a ladder. Sorry. On picture 1,2,4 it looks like that the leds are very close to the housing. And we can´t see if the lens shade is close to the dome glass. Sometimes it only a few milimeters for turning the cam, to prevent the lens getting cloud effects from the ir. Because of the many leds for this cheap version you need to prove, that the lens is as near of middle of the dome as possible. And its senseless to have the wall on the picture. Maybe turning it away from the wall, putting it a bit more down would help much.
If this doesn´t help, you need to search a way to move the cams to better positions. Looking in an nearly 90 degree angle is not good for dome cams.
I can´t understand, why the dome version has been used. The balls eye hdw4421 wouldn´t cost more. It looks like the installer didn´t think about what he did, or he did not have a clue