Thin your paints, its very obvious from your painting that you have good technique and brush control, thinning your paints will help with blending your layers and will make your stuff look a ton better, trust me on this one, you'll have to do an extra coat or two to get the same bright colors but it will look loads better.
Also matte varnish will make your current highlights look less muddy, since gloss tends to make things look very odd.
The conversion is very top notch though, I like it a lot, reminds me of the GD 2002 Chaos Lord.
Also, if your interested in scaly beastmen, you should totally get some of these guys:
There are Turtlemen, WITH MUSKETS.