I think that's very good for no line art. And two things that could help you:
1) Try drawing over and alchemy design thingy. If you don't know alchemy, Just google alchemy drawing software or something, it's free and very good to generate something that will trigger ideas.
2)I think you could improve on your values, more contrast on the main area you want to feature, and maybe darker shadows in general.
thanks for the feedback, much appreciated :)
The textures for this are very Impressive.
thanks for the feedback! :)
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