Thanks, Grace! But now that you mention it, I can see that the arm she's holding the sword with is noticeably skinnier than in the original. I think I'll try to fix that. Once I'm done making changes to this one I'm gonna try to draw something original. Hopefully I'll get an idea for something to draw soon. I actually started a drawing of Ritsuko before this Youmu copy but I abandoned it because I have difficulty figuring out on my own where the folds in clothing go. Maybe I'll get back to work on that.
In other news, I've been thinking of getting a Wacom tablet but I'm kinda on the fence about it. Art that's finished digitally looks more professional, in my opinion, but I'm not sure if I could get used to drawing on the tablet but looking at my monitor (instead of the tablet) to see the results. Learning to do this sounds like an interesting challenge, though. Also, I've looked at the profile pages of my favorite artists on Pixiv and, of the ones that mention what software they use, they almost all use SAI... which isn't available for Mac. Any Mac users out there know of software for Mac that makes a drawing tablet enjoyable to use?