Very cool. Currently using this for prototyping a project called Capstone.
I have put credits in the README and a link to this page. I assume that by 'please do not redistribute' you mean the asset pack, on its own, not the asset pack, as part of a larger project.
If I am mistaken here, please let me know, so I can remove it from github...
As a feedback, aside from praise, you might want to consider making the first frame of the character animations a neutral stance, so that the animation can be frozen on start to represent idle. As of now, the mid frame is the neutral one and the first one is mid-walk-cycle. This is not a significant problem, though