Just a personal choice, really. I don't mind reusing the background when it works (like this), but I don't really like reusing the same pose, or having a set price on YCHs. I may do more background recycling in the future when I have ideas like this that work, but I doubt I'll ever reuse a pose. I guess mostly so that they stay more unique and I get to draw more variety.
Just a personal choice, really. I don't mind reusing the background when it works (like this), but I