Such a simple design, but I have to say I love it! It's very relatable too, and I like how you laid everything out, including the art supplies. The blue sketch line is also a great addition— I did the same on my entry as well! My only complaint is really a typography nitpick— did you use Papyrus for the word "Sketch"? A lot of designers will avoid using that font, since it's pretty overused and unprofessional. While I don't think it's a dealbreaker for most people (I'm just a dork when it comes to typefaces) I'd suggest maybe looking around for other handwritten or sketchy fonts if you ever do a design like this again. I don't know newgrounds' rules on suggesting offsite links, but if you look up "dafont" you should find a site with free fonts you can use in future designs. Like I said, though, this really is a nitpick, and I still think I'd get this shirt if it was for sale. Good job, hope this helped for the future!