I TOTALLY AGREE! Oni-sama gets NO ATTENTION! And he is my FAVORITE! I am so glad someone other than me is out there paying homage to him!
I don't know much about "Art Nouveau" (I am assuming that is the style you used), however, I am very pleased to see that the content of your style is accurate and faithful towards the originals to a surprising degree. Clean lines and well maintained focus on the important areas also give you points. From my perspective, this is a 5/5.
Nobody seems to draw him -- and it's even more difficult to find reference pictures of the guy...! I could NOT for the life of me find a detailed reference of his, uh.... crotch plate. lol I'M SERIOUS. NO ONE DRAWS THIS GUY. HE SHOULD BE BIGGER THAN MY LITTLE PONY. >:C
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