Challenges of drawling scenes for our game!

I had a little trouble trying to draw one scene for the game. I'm not a very good at drawing to begin with but after i got the hang of it, I didn't have that much of a problem. When I first started this drawing, it was very challenging. I couldn't get the lines right or the desk to look like desk in a classroom. I finally got the picture to look like a actual classroom and like their was desk in there, also. Hopefully, I won't have such a hard time trying to draw the next scene for the wiki.