I tried looking for feedback on these items, but I never got any feedback on them.
Overall they look great, but the blue backlight on the powders looks a little odd considering that none of the other items have it. The paper also looks like some sort of flat stone with the highlights around the edges. The emerald also looks a little flat; if you're going for a rupee-ish look with edges that slope up to the middle then I suggest making it darker around the outside to give a better feeling of depth. If not, then ignore that last sentence.
Well there's at least one other block in the water dungeons too which is prismarine. There's also a new hostile mob to go with them and sponges are being re-implemented. Apart from that I don't think so. We'll find out next snapshot anyways!
Your skills never cease to amaze me fish. The one thing I always wonder whenever you post your textures is how do you choose colors? All your textures have this unique coloration to them that blends really well with each other. I've tried creating color palettes before but I've never been able to make one that's as perfect as yours seems to be. I've even tried to analyze the color ramps that I reconstruct from some of your textures like the stone colors you use, but I can never figure out just how you do it. Please make a tutorial or something.