Eh, now that it's here you should tag & source it.
Yeah, may as well. orz
You know, I thought this was just a (colorful) edit of someone else's work that was initially posted on We Heart It (without a source, naturally), but it turns out this edit was by the original artist after all.
Edit: Also, this is actually pretty low-res compared to the actual image so I'll just get the other one on here and we can let this one get deleted