Astro, son of mercy and lily!

[Astrogalaxies]

Astro is a immature stallion, sporting a mane of white, with blue splotches. He has a messy mane a bit darker than the blue on his coat almost like a emerald-blue  Astro also is a pegasus, but isn't a blank-flank with a small odd cutie mark. Annoying as he is when he trys to be charming he doesn't have one real crush but seems to fall in love every three days! (okay maybe not every three days...) open-minded and a nice chatter astro has tons of hobbies.. like maybe pranking and joking and blaahhh
I dont have a picture of him yet, sorry!   
more 'general' info:
age: growing into a fine young stallion, yet as immature as a colt!
gender: male you sillies 
favorite color?: green!

[Luminescence]

Well, there isn't much here now, but from what is there, it seems interesting.
Couple Quick Tips of how to develop it Without the Picture, Describe the Cutie Mark for One. Identify some of those "tons" of hobbies, probably some of the more pertinent to his character. Also, give more, well, stuff about him! Favorite XXX, Least Favorite XXX, A cutie mark story, Place of Residence, Past Crushes, and perhaps a definable color of the coat and mane. If nothing else, you could probably find it on a hexcode color code.

Other than that, great Base!