I'm having problems getting your pics in here, but I'll just do my best without them
In your last picture, I love the blue tongue and the face. I think the highlights are what really made it pop. Well done!
: You have some weird ashy, grey color where shadows would normally be. I'm not sure what look you were going for, but it's throwing me off a bit. Also, I'd like to see a more adventurous scheme picked out for the horns than just drybrushing.
Anyways, keep up the good work!