I think this texture pack would look better if Netherrack, and all the other blocks with Netherrack, and magma is dark blue instead of light blue, also I think all of the icy Nether mobs would look better a little darker, also I think you should make Nether bricks dark blue instead of dark red, I also think making Shroomlight and Glowstone be light blue instead of yellow would look better, I also think Basalt, would look better if they had their normal texture, and I think Ancient debris should have it's normal texture but a little bit more dark blue, I also think Crying Obsidian should if it's normal texture put with the purple replaced with blue. I also think you should make the magma cube's texture more calm.

Here's a zoglin texture you can use if you like:

And a preview of how they look:

What do you think? I tried to make them fit in with your theme :D It's just a palette-swapped version of the one from the vanilla default textures

MY EYES!!! try to use a less saturated color and it will look way better!!