The current version (13w19a_b1) just updates the pack to support the latest snapshot (and hopefully 1.5 as well) and adds no additional textures from v1.4.7. It's a prerelease before I add new textures in b2, which will hopefully be coming in the next week.
Here's an imgur album showcasing many of the mobs:
So far, texture pack v. 13w19a_b1 changes the appearance of:
- Most mobs
- Menu backgrounds
- Soul Sand
- That Creeper face sandstone block
- Redstone Lamps
- Hearts given off by animals when given wheat.
- Wither Skeleton
- Anything from 1.6
- Update various mobs including skeletons.
For now, the subtle version will be unavailable, as it's easier to frequently update one version. Subtle will return after the release of 1.6.
Here's a video done by GameChap and Bertie, showing NarcisissmCraft 1.2 and just about all the mobs:
Have fun, and let me know what you think or would like added!