Sorry for the very late response, but dithering is when you make a checkerboard pattern in areas of shading that look too smooth, to make them blend in and generally look much nicer.I whipped up an example for you:On the left is your Megashark, but on the right is a Megashark with dithering. You can clearly see the difference, right? The shading looks much less strangely 'smooth', and it gives the sprite some more texture and life.And if you open up the image, you can see that my Megashark has a checkerboard-like pattern where appropriate.This is a technique, that almost all pixel artists use (and should use) for images that are larger, or images in general that you can clearly see the shading looks too smooth in.You should be able to find more examples with a quick Google. This is a very common technique and honestly this pack desperately needs some haha.I can also see quite a few leftovers from the original sprites in your sprites, if you look closely you can see so many upscaled leftovers from the original.Well yeah. Also I asked because I was working on another faithful pack for Terraria myself but it was too much for me alone, but then I decided to work on another texture pack which was faithful which wasn't by me, and we got pretty far until the creator sadly quit (presumably). So I was just asking if I could help because of that