Te lord of the rings - Orc Olog-hai
https://www.youtube.com/watch?v=scFUO5lubDc&feature=emb_title
Olog-hai are not mentioned by name in The Lord of the Rings; the term appears only in the appendices. They were created by Sauron at the end of the Third Age, possibly for the same reason that Saruman created the Uruk-hai, to improve and lesser vulnerability to sunlight.
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Helps the lazy people like me.
Outer toe being bigger than the inside toe is a bit anatomy red flag to me as well.
The blue part of the skin could stand to have more roughness variation and normal skin detail to it to help it pop out against the rest of the body.
The blood splatter looks unconvinving at the moment. LIke there's spots where it's a soft gradient, and others where it's a particle brush only look. Unify the application and give it a direction it was coming from.
I would suggest, hide your blood platter and dirt passes and work further on your materials. For the skin, bake a thickness map and use SSS. That will boost your skin work.
As Brian "Panda" Choi mentioned, the roughness values are key for a good texture job. BTW on what resolution is your current texture set?
What is your final presentation platform? Do you want to pose your character?
Keep it up!
Also cross reference them with exsiting Lord of the Rings assets of trolls and the like; see what's kept, noted, or defined between those fictional character assets and real life references.
Unless it is part of description, my opinion is he would look more believable with the inside toe larger then the outside toe.
I think where it needs the most work at the moment is materials and lighting.
The materials look like they are off to a good start, They general match the color schemes and designs of the LOTR games and movies. Although they also look way to low-rez and blurry for current generation games, or portfolio art. Boost the resolutions and make the details sharper.
It looks like the material is just albedo and normal at the moment? Add a roughness map in there as well. Does this guy has rough skin like a Rino? if so it should be very close to mat.
Keep it up, he is off to a good start.