Damn, that is looking really nice! I can't help but notice something a little odd with the horns though. At first glance my eyes are pairing up the horns in a staggered fashion, like so: My eyes think the two blue horns are part of a pair and the two purple ones are part of the other pair and since the curves are at total…
What nyx said, with your sketch right now there's a tangent right where the bottom two horns touch so making the bottom horn shorter will help fix that
I made this Demon fella for Halloween and to practice making Insert Mesh brushes. It was great fun! Could definitely work on making the horns be more horn-like though
Completely agree with lampekap's post. Personally I'd get rid of the hip wings and make the shoulder wings bigger. Not a fan of the horn wither, looks more like an antenna than a horn. Also I'm personally not fond of unicorn dragons, perhaps giving it a second horn and put it more towards the back like Spyro?