Welcome to the Guild!
The best way to learn is to post something soon, no matter how rough you think it looks and wait for the flood of suggestions and critiques. We'll offer you tips, direction and techniques in whichever application you are using. Before long you'll be a master. But if you don't post, until you think you won't be embarressed by what you create the process will take much longer.
So post something soon, OK? It will only help.