This started as a warm-up sketch (just to get the hang of the tablet since it's been so long since the last time I used it) but I think I went kinda overboard. I really like the result though, and I had fun making it (and that's the important part!).
This is Ryuusei Sakuta (aka Kamen Rider Meteor) from Kamen Rider Fourze, a Japanese tokusatsu show about high school students and space. He's the second Rider of the show and one of the co-protagonists.