Flippy boy!!
Derecho, Rainbow's son, is a skilled gymnast. His whole life, he's always been interested in learning to do sweet flips on the ground rather than in the sky. He's a great flier, of course, being as agile as he is, but he never really felt the urge to become a Wonderbolt like his mom. Instead, he focused on balance, flexibility, and style.
The reason Ray cut his hair so short in the first place was so he could do gymnastics better, which really proved to everypony around him how important the skill was to him. The only thing Derecho loves more than being a gymnast is being pretty. Sacrificing his magnificent mane was quite detrimental to his self-esteem, but he quickly got used to it and embraced his new look.

I love my boy Derecho with my whole heart.
I'm also super proud of how this came out! I was worried it would look wonky with the weird pose, but I think I pulled it off! The bow he's wearing around his wings is to prevent pegasi from using their wings in competitions.
I actually finished this yesterday, which is why I'm posting it so early. Hopefully that'll give me a head start on the next few days so I can take more time to do them!