Hey, please help w/ work.

Well, I'm a background artist for my company's (mibbygames.com) new flash game, Seige artist, my skills with this pathetic wireless mouse are mediocre at best, and I am not at the level I could be if I had a tablet. This is a rough, and I mean rough sketch for the first level, it's a side scroller, and it's a rough sketch because there it is supposed to be really long. I'm going for a temple look, I dunno I drew this up in thirty minutes, I need help with what other buildings I should add, and other things, and what should I fix up. It should be like a little grim.

Here is the link:
http://spamtheweb.com/ul/upload/310109/20531_bg.php

Thanks for anyone willing to help!

Edit:The red thing in the middle is a placeholder for the actual platforms.