The character on the left is facing directly forward with mostly neutral shoulders and an arm posed up in a stiff right-angle. The character on the right is more interesting with the added tilt, but could still stand to have that pose pushed a bit. Running on the assumption that they're taking a selfie during a fun day together, I've angled Lefty forward like she's leaning into the camera's view instead of standing passively. I've also angled her elbow and arm to flow with it and show a bit more dimensional. Righty's pose and angle has just been pushed slightly more, and I've nudged his chin up a little bit. That being said, overall I think this is a nice piece and I like your line work technique. I especially like the way you do clothing folds and hair. I hope this was helpful.

