This is for future readers, i know the post is old.
No offense intended, your actual application of the paint with your roller was pretty poor. You can see from your original two coats picture that you kinda just slapped it on and rolled it with very little paint on the roller cover. Instead of trying to maximize the amount of area you can cover per roller dip, make sure you get lots of paint onto the roller, and paint the wall in smaller sections. You should also be back rolling a bit to help even out the coat get rid of paint lines. Even with a poor paint, two coats should have looked much better then that, you should spend a few minutes researching how to propperly mask, trim and roll a wall.