When I first saw Jayce, I felt something was a bit off about him.
Recently, I realized there is a dissonance with his body and his wardrobe.
If you look at his outfit, it's distinctly JRPG-like in design - that is, modern Eastern fashion concepts were incorporated into it. I'm not sure if this was intentional, but it clashes with his Clark Kent face and large stature, and his pulpy and cheesy superhero lore.
While I'm on that subject, how about other glaring champion design flaws? For example, Syndra's headdress thing doesn't have a sharp/mean enough look over the top of the face, nor is it curved and spiraled enough to be that fantastical elegant exotic sort of thing. Which is why she should have a tiara. But I digress. She also lacks Eastern elements, despite being Ionian (I suggest giving her a hairstyle that screams Eastern).
Also, Kog'maw and Cho'gath need tentacles. pls.