Going to be completely honest here, not a big fan. The colors all seem rather gradient, and the wood planks look like bricks. Overall textures seem a bit messy, I'd suggest removing unneeded lines/details. For instance, the one brown pixel on the inside of log textures. Just my two cents.
Also, the gold block textures' highlights are a little strange, the highlight is actually darker then the darker shade. I like the colors on the Netherack though.
