Nice!
Pretty good scene maker you made here. Most scene makers have about 10 sprites to use and its really dull. This one has ALOT! I like it alot. I really like how you could open the doors, that was cool. Maybe in your next version (if you make one) you could make the environment more interactive. Not saying this one lacks anything but you could improve on adding features.... as for fixing anything i think its pretty good as is. Good job!