Halfpipe: Sketch

DISCLAIMER: I do not skateboard or inline skate. I know the basic mechanics behind it but that's it. if the halfpipe or the rollerblades or any of that look off, it's because I'm an idiot and so please help me through that

I had an idea for a pose and just ran with it I'm not sure if it's actually any good, but I wanted help with the pose and stuff. I love Samni she's so athletic and spontaneous I can get her to do so many things