Awesome work here!
I love that you made a summon trophy of something Tom made up in grade 2. hahah
Overall, I can tell you put a lot of effort into this piece. It's so jam-packed with detail and there's a Newgrounds reference everywhere you could possibly look.
If I had to be absolutely nit-picky though, I think Tricky could be made to stand out from the background a bit more with an outline to match Tom's. Just my personal opinion, though.
All in all, I really appreciate all the references you chose to incorporate. The street-fighter/smash bros look of it all works really well with all the Newgrounds material you packed in. c:
Great job!