Good work! Perspective is one of those things that is pretty mechanical, and one can avoid learning it for a long time by using crutches. It's always faster to work when one has internalized perspective and especially foreshortening so it comes automatically.
Thank you very much! I have to really work at it because I have trouble seeing the big picture as a whole. My process is to focus on minute details, so I start drawing a part of the scene and work out from there. Yesterday in class, my drawing teacher saw me doing that with a bird picture and gave me the recommendation to draw the outside of the whole thing first, so that I could fill it in a lot easier. I tried it, but messed it up. I guess it's my bottom-up mental style 🤷♂️