Sorry, I had to edit DuMaju's post because it had something naughty in it, and then the next two posts after it made no sense with the naughty bits gone, so they're gone too.
Anyway. That level needs alot of work. There's too much going on. Too many floor types all mushed together, and the lava pool is just there for no reason.
Like everyone said the wall is the best part, I've used this style of wall many a time, I like it alot. The only problem is: you had the right idea, but executed it badly. First of all, the wall isnt the same thickness all the way around, on the sides, it's 3 pixels thick, but at the top it's 5! That makes no sense. Secondly there are alot of tile errors in you walls, such as repeating bricks*, which look ugly, and your "triangles" dont actually connect to the wall.
I made an example (attached) of that wall style for you to look at (and then got a bit carried away, sorry. :P) Examine the placement of each tile in my example carefully and keep practicing this wall style, it's a neat one. Don't feel shy to post your progress in this thread.
