You can just feel the pain that Nico is feeling. I mean, whoever drew this (Burdge maybe?) obviously knows the character well enough to express this much emotion in a simple sketch. I love this drawing.
Im pretty sure that this is Nico, but it also looks like Percy. This is older Nico who realized what he liked most about Percy was his hair, so he cut it like his!<<<< I liked the art, then I read the comment.