Here are some of the blocks I worked on lately.
I improved the netherite block, giving it a scruffed metallic appearance.
I also designed crimson nylium blocks (side & top), I used vein or tendril-like patterns on the ground to mimick some kind of hellish mycelium root.
Ancient debris (side & top) I designed as rocky concretions with metallic inserts and a scale-like POM pattern to roughly follow the overall style of the original block. Metallic inserts are there to represent the netherite ore that can be extracted from those blocks.
Spectrum Spectrum BSL v7.1.05p3 Continuum 2.1 Continuum 2.1 Spectrum