the mane and tail might look a bit complicated, but they're not. they are shades of just a slightly purplish , bit darker than medium gray. i made them darker at the tips and a little lighter at the base, then used the blender tool. i then used the darker pinkish color from the spots on the side and used the watercolor brush, and just made random waves. then i used the lighter pink to make slightly diagonal lines across the mane and tail. i might add a few other things if i have time once this is posted.EDIT: i also used dodge, set it to around 31 opacity and one random wave in the bangs, mane, tail, and the weird sideburn-looking thing. i also plan on adding one more thing, because i keep forgetting everything i was going to do.
oh well, hope you like! 
