Quote from Levaunt
Was wondering if someone was going to do this. I e-mailed Frenden for permission a while back but he never got back to me.
The sandstone you have doesn't match his style at all really. Try to stick to pixel art, and the same colors he uses, you might also look for his other WIP pack for more reference. I think it was called Frenden's Detailed Pack.
Here's the sandstone types that I have for my personal continuation of his pack:
I didn't see your request. I love your work and am totally happy with any additions or alterations you may want to make. The pack is on Github. Literally anyone has permission to use it as a base so long as it is credited properly. No biggie.
Brandon, I'm glad the pack has a second life and wish you success with it!