I LEARNED THE METHOD FROM ANOTHER, I DIDN'T MAKE HOW YOU DO IT. How i did it: So i got a picture of a red panda and i traced it, then i used the tracing and created an outline using only straight lines (thank you procreate!) and after i put lines inside of it. Then put the og photo behind the line layer (make sure to copy line layer and make one a color layer cuz procreate will mess up the lines on the color layer!) and show the og layer, and start coloring in the shapes using colordrop.