First challenge I participate in.
took a REEAALLY long time to make >.>
hmm, I could stll make a more advanced version just for fun, I'll try. Thx for the comment! :D
I like it, but it's too simple.
For example, the pipe looks like a "T" instead of a pipe.
I'd suggest you to redo the image, correctly. Create the pipe and have it as a circular shading and part of the nozzle showing.
As for the boy, maybe shade him?
Other than that, great job!
Oh! It's for a contest!!! Whoops!! Sorry! It looks really nice! x-x