I've recently begun creating my own texture pack, even though it's a difficult task to do for me. All I have atm is a mob-folder, with almost 100 different mob-skins, which are currently all from other packs. The plan so far is to take them, alter them, change them to my own liking. The idea is that when used with Optifine, it enables you to see up to 4 themes of mobs: Vanilla alternates & Scifi alternates, techno-horrors & mage creations.

More to come soon (I hope).

Update:

I've had more time to work on the textures and most of it, I'm satisfied with. The only texture giving me trouble is the sandstone blocks and the wool colours.

I've begun re-doing the armors and the items.