Nice start. Very clean drawings.
Some of your stills their perspective is a bit off. Even on a small scale like that, objects should be in perspective, instead of making all lines parapel (some seem to converge towards the viewer,which makes it look even stranger:p ), have them converge just a tiny bit. It will make things feel more real, drawing in perspective is just drawing as the eye sees, and thus you are tricking the eye that whatever you are drawing is real.

Also some things feel like they are slightly tilted.
Bookmarks