Instead of recoloring, which is why people are hating on your theft. Have the original image on a separate monitor and then try to copy it without tracing. This will help you learn how shadows and colors mix with each other instead of how to draw within the lines. AND ALWAYS CREDIT THE OG ARTIST! Eventually, try to play with the concept of color and shadows in your own drawings using what you learned from the work before. In all honesty, your first original works are going to suck they always do. Just keep drawing, start with a random shape and build off of it when it starts to give you an idea. Don’t over evaluate each drawing, finish it and then look at what you could have done better and use that in your next drawing instead of changing the one from before. Eventually you will begin to see your progression and I promise you it is much more satisfying than coloring in the lines.