I want to draw concept art for my story but I don't know how to draw. I don't know where to start so I thought I'd ask for help here. The types of art I'd like to do are like the ones on this tumblr page. http://fuckyeahconceptart.tumblr.com/
I think it's digital drawing using a drawing tablet or something. Also how to choose colors, adding shadows, lighting and anything else that I'm missing. Thank you for the help in advance.