Please help me

Okay I need some help with this, it will possibly be a bid for a Fawnling but it is supposed to be a Fawnling in the end. I'm having trouble with the mane, tail, hooves and horn. So if any could help me out by lining it and possibly fixing the bits you think that are wrong it would mean the world to me because I love fawnlings and I'm really trying hard to get one and I have lost a lot of auctions in the past and I'm kinda feeling lucky about this Fawnling.

Art (c) me