The project didn't die, so that's good! I would've helped more, but life happened. However, I will now try to give objective reviews.
He looks good! The colors are consistent, and the build is fine!
His legs are nice, and the weapon is cool, but his shoulders are virtually Identical, implying a similar function. That's not good. All the creatures (more or less) had different functions.
Excellent! Same complaint about the shoulders, but the colors are great, and the shield is good.
Possibly the worst Shadow Okotan, as the mask seems to big for the body. Also, the weapon is plane, and the colors seem incohesive. Also, I'm just now noticing that all of them have the same gun build. That's not good.
Same complaint on the mask. The toes are good, but seem to unorthodox to be in an official set. The hammer is eh.
She's okay. The weapon is pretty good.
Gappy legs. Swords are cool. The torso seems to slim, though.
Could use some gunmetal on the arms to balance the colors. Should have the silver removed from the wings.
He's not bad save for the gappy legs.
The asymmetry is... odd. The weapon looks copied from a Shadow Okotan. The colors are nice, though.
Same thing about the feet as on his Shadow Okotan. The trans-colors don't mesh as well here. The cloth feels out of place, I doubt Lego would reuse a piece that specialized.
She's solid. Fine all around.
Not solid. The colors seem unbalanced. Maybe take out a trans-color or two.
Awkward pose, and the neck is two long. he would greatly benefit from the removal (or at least redistribution) of gunmetal. I like the weapon, though!
The colors mesh better here than on Karnarohk, but it's more of an issue here. He's supposed to be a being of fire, not magma. On Karnarohk it's fine because he's not a main element. At least switch the purple for green, so the blade doesn't seem as garish.
Much better than the last one. His colors mesh well, he has reasonable bulk, and he's not to gapy.
Unless you want to switch the purple for orange, change the color on the chain. The colors work slightly better here than on Tatanak, but he could still use more green.
About as good as the normal one, since you changed little. He does look nice in purple, though!
Looks good, but needs some way to immediately interact with the figures like the Skull Spiders and Shadow Traps.
Overall, not bad.