These look awesome for being new to it.
If your interested a few things that brought me even further when I was progressing over the last 2 years was blending.
A wet pallet is amazeballs for that. P3 (Privateer Press) sells them for around 12 bucks I think. There are a ton of tuts on here too on how to use them.
Basically for dark angles green the quick and dirty is this.
Blob some Dark Angles green down on the wet pallet. Base coat your armor in it.
Take your highlight color (not sure the proper name but the next shade of green) and mix it with whats left of your dark angles green on the pallet. Looking for a 50/50 ratio about. Go over the edges in a fairly thick brush with it.
Then do a fine edge high lite in your hi lite color. No mixing needed for that one just make sure its watered down a bit.
After to blend them all together you can get one of the
GW glazes. No need to dilute it just brush it on the armor all over.
The same thing can be done with the robes.
Just work from a brown up to bleached bone and use white as your high lite.
Hope this helps! Really made me look back once I mastered it and go ....wow...
Keep it up though. You show great promise.