Lets see, i am a brony? Yep, so i like this, not only because Vynil Scratch (or DJ PON3) is one of my favorite pony´s i like this, i like this because is ADOREBLE (or like in the Vynil way) 4D0R4BL3. Lets see something more, its on "Vector" style (its cool by the way) and same CUTE, because looks like a little flufy ball, its a bit sad its not me favorite pony (Derpy is my favorite pony if you ask), but in anyway its looks to cute and adorebl, but i would like to use it like wallpaper XD.
This is a very nice and neat wallpaper, although I would make the vinyl scratch vector a bit 'crispier' just to make it slightly stand out from the background. The shadow below Vinyl looks a bit out of place, but I see what you were aiming to do there. I love the 'simple' background design. Simple but effective. The way you did the soft blue shadow around the horn adds a little 'flavor' to it. It works nicely with all the shadowing you did which was just right by the way. All in all, this is an impressive piece of art.