Been creating a mod called Pixels, Synth & Unfairness (I have a problem though)

#1
Mod Link: https://www.moddb.com/mods/scp-containm ... unfairness
Ignore the UE, I took that out.

Basically the mod features, new music, 3 new difficulties, Thaumiel, Apollyon and Trucelent as well as 914 changes, and a bunch of main SCP changes.

What I am trying to do is recreate the models to be more made of voxels, and it's been proving to be difficult.
I can model and export the models as .obj then convert them into .b3d files though a software called fragMOTION. The files render into the game really well. But the textures that I have made for the models doesn't show up and it's just all black.
So far I have only done 173, and this is why I'd rather fix this problem than continue with the rest of the models.

If anyone can help me out. Amazing! If not, then be sure to check out the mod!
Blitz3D is fun, but really weird.