my advice is to use references !! always try to practice the weak spots of your art, and enforce the strong spots of your art. If your not sure where to start practicing, than look up all sorts of poses and try to replicate them until your satisfied with the result! Ive been drawing for a while so i’ve acquired a bit of knowledge over the years, but a way you can learn things like i have is by watching youtube videos about improving art, they’ll go into depth, and help teach you even more, i wish you the best on your art journey!!