Christopher Fritz says:

Minor nitpick to get out of the way: The red text looks overly contrasty to me. This isn't too much of a complaint, as thankfully it's not blue or lime green. Maybe try a yellow, or perhaps white? If you like the red, I wouldn't suggest changing it, but I wanted to give it a mention.

That said: I must say, I am enjoying these. I've never seen the series the screenshots are from, so things are able to look completely "original" to me. Whether that's a plus or minus for me as a reader, I don't know.

Now I just need to stop trying to read these right-to-left. That's what I get for recently reading a handful of pages of Cardcaptor Sakura…