Furrytrash's art has a very consistent style and aesthetic. It's a pretty unique style, something pretty uncommon with both furry art and flipanim. The pictures all look kind of graint, like it was drawn on paper with sand in it. What I think is shading is usually dots and kind of darker lines. With the furries, they look like patterns on the fur, or grillmarks, and with humans they look like rashes and whip marks. The art has definitely progressed, the main improvements being the style looking more stylized and the colours looking better. My main advice is to experiment with other styles of shading that might fit in better with the rest of the art, maybe a combination of two?