If you have any questions feel free to ask. Use left/right to scroll along the level to see what you have so far. Also, there are pipes, I just didn't have time to put them in there, so whenever you make a piranha plant put them in a pipe. :P If you're wondering how difficult the level should be, this level is level 6 out of 9.
Simply see inside, go to the costumes of the sprite named "Terrains" and edit them as you please. You can copy and paste the enemies and objects where you see fit in the costumes. Each costume is a new terrain. Make sure to ONLY USE VECTOR. The art doesn't have to be perfect or anything as I may modify the level upon adding it in.