Biostruct Concepts_X4

Four more Biostruct concept pieces. I just went nuts with these. It's supposed to be a semi-amorphous monster so there's no real rule as to how it would look, kinda like the Thing.
The written descriptors in the illustration(s) pretty much explain the rest.

Please give me suggestions and critiques!

Other Biostruct concepts:
The Biostruct (the name and creature) and all other characters related to the Crossover Project are owned by me.