Check some of my rejected AI images out and advise me

I have a been a contributer for about a year now and i have had terrible sale record mainly because i sell only vector files and i haven't been really consistent.

So i decided to add AI images, got a paid plan and i generated some images which seam to be pretty convinsing and also look great. Unfortunately, a large number were rejected with not much detail as to why.

Is anyone willing to help a brother out here? Any and all advices are welcome.

Oh and by the way, 2 images were approved and they were that of a young girl in the back seat of a car and a man in a field of yellow flowers, both images look very good so i think i might consider making more of them.

Just wanted to get some advice from the community first.