This picture puts three photos together in one, irises from my garden, my cat and a butterfly that was in the woods. I had to learn to cut them out and paste them in the same picture adding the turquoise background. Then using filters to leave only the outline edges and coloring the colors back in using my mouse.
And there are endless choices of brush sizes, styles, colors. Once I got the hang of it, it was much more fun that frustrating. It seems there is this point of frustration at which point I just want to quit. But, I realized a short time ago if I just stay with it then very soon after everything falls into place. and that happens all the time. It's like the universe just wants to see what you're made of. When you show it your endurance it seems to open it's gate to all possibilities.