Rainbow Dash's Dad, maybe brother? Vector created in Illustrator, from My Little Pony Season 3 Episode 12 Games Ponies Play
All I know is Firefly better be her mom! If copyright is the issue change her colors minorly, or maybe keep one lightning bolt or add a third.. As for the name of her possibly Fyre Flye
As for this guys cutie mark it was hard to tell exactly what it was possibly a rainboom or a rainbow coming out of the clouds, it was hard to figure out copied best I could.
Want to decide what pony I do next! Follow me on Twitter @AquaticNeon and send a request my way!