Not trying to tread on the toes of whatever bob is suggesting in terms of help, but having saved your first picture, and lightened it considerably, so I can more easily pick out the detail, which interestingly there is quite a lot of, I see no reason why you can’t angle it to the right, so it just fringes the wall on the left. No point having nearly half the frame as a picture of wall, which is not vulnerable to attack. Sure, your gate would now be at the left of the frame, but what does that matter. Not much point seeing half a wall on the left of every video.
Also, someone else in your situation, made a little stick on cover/cone for the IR LED, so it couldn’t shine sideways onto the wall and only down his 'corridor; of required view. He said it worked well.
Anyway, I’m sure bob will sort you out, but I just thought I’d mention these as they might offer a quick improvement.