Hello! Thanks for the comment. To answer your questions,
1. My prices have gone up gradually over the years I've been doing commissions; in my commission TOS journal, you can see some rough estimates.
2. I have 3 commissions in my queue right now, but I don't have a limit on how many I can take on, currently. The wait before I would get to spot #4 is probably around 2-3 weeks.