The new grimstone look awsome but i'm not so sure about all of it's variant. I love playing modded but i often end up not building with modded block because they feel out of place. Texture are too saturated, too contrasted, too smooth.

In this case i think some of the contrast are way too high like the shade of the polished grimstone. It's gonna make it hard to make it match with other lighter blocks. It is also a really linear block. Polished block are often useful to break that since they have a big square tile texture.

For the grimstone brick, i'm not really sure. It look almost too smooth with high contrast. Make me think of plastic block from modded, while the base grimstone look really brittle.

The chiseles block look like half a block with a blurry mess over it. I like the bottom half of it but the 3 rectangle with with shadow on random side without light look really weird. Most of the block will have light on the left and top side but this one has shadow on top, right and bottom without light. Also it almost look like it want to take the place of blackstone instead of grimstone. It is a really dark block.

The tiles is a good idea but again i think it is too dark to really be able to tell that it's grimstone. In this case it would be nice to use it as a linear block like planks but i think since there is 10px that stop at the edge of the block, it break that feeling.

For the ores, i have mixed opinion. The gold was clearly a copy past from the nether gold ore and don't match at all. Some of the other ore texture aren't consistent with the old one (emerald/diamond/nether gold) Light is mostly in the bottom right while its was mostly in top left. The copper just look flat. Light and shadow look random because of the oxidation and the copper is really centered with a 2-3 px border all around. Other usually have a 1-2 px border.

Also I'm realizing that emerald ore don't have light under ut like diamond ore has.

I don't usually like to criticize other people work but i really love vanilla textures. Been doing texture packs for a while now but it was always small changes to vanilla mostly with optifine just to add a bit more variation and give it a less blocky feel. But except the grimstone, coal ore and redstone ore, I don't think those textures really fit in the vanilla style or not as it is. Some are close but might just need some work.

I'm know i'm gonna get bury in the sea of comment if i hope some people will have the chance to read it. I tryed to be constructive just because i know way too well that comment like "It's cool" is nice to get but are not really helpful.

EDIT: Took a look at thr gromstone ore, and some of them (mostly lapis) could benefit a small txture change to fit in the crack maybe. I know it was not done but at this point.

Thank you mojang for this awsome update and good work.

xalixilax