I don't actually submit any work here, but my motivation for drawing is that I can only ever improve, and I often have a good time doing it. I've been wielding a pen since the second day I was born, seemingly, and mutilating expensive books with them from the third. I've been drawing my whole life, and it is a dire shame that I'm fucking awful but I enjoy it and that's all the motivation I need. And even when I don't enjoy it... beating yourself is an excellent challenge - trying to override that bit of you which makes the same old mistakes, or won't put on paper what is in your head.
And has anyone tried drawing Chespin? Like, come on! It's wonderful. You can put the most horrible faces in the centre and give the best poses, and it all comes together excellently. I'm just waiting for the day where I can sketch Italian waitresses from memory, to be honest. Then I'll give her the picture and blush and fidget. There's a lot of motivation in that thought.