@redlightning By have, you mean know of right? I have indeed. I liked these videos and it taught me. I just haven't got the time to sink in and practise. Time is the problem! Anyway on Youtube there is a channel called CUBEBRUSH. He (they?) has a good series on drawing figures/characters/people. He might have some on backgrounds but I haven't specifically seen it. He's a concept artist for a games studio and I think he used to run a forum where people could submit art and he would offer insight on how to improve it, I don't think this is going now unless you pay. https://www.youtube.com/playlist?list=PLzDE6rf7BxBLxzp2s1quvHMp2nooRdhQk is the playlist I used But there are MANY more on other topics.
Ones using a Wacom table would be very helpful as well. It doesn't have to be in Adobe programs either.