The shape looks very good, however. Did you make that out of blocks or as an MDL file? Throughout this thread, I'm thinking MDL file since that's what I use for levels. I don't use blocks because they are downright slow at rendering. Given the debug panel (as a source for clues), it seems like it's an MDL file.
"You level up the fastest and easiest if you do things at your own level and no higher or lower" - useful tip
My 2D game - release on Jun 13th; My tutorials