I've contemplated for the longest time on what the perfect prices would be for commissions, and I'm honestly stuck. I need help if anyone wouldn't mind helping.

First of all, commissions are a bit tricky to do as there are some personal issues I still haven't figured out. So, they've been closed for a long long time. I've only opened twice, and I felt that they were either too much or too little then.

Here's what I generally think about when it comes to art...
Quality and.. Time.

And, I much more prefer quality over quantity. Even though my fastest commission type are Doodles, standing at roughly 3 hours each. Other pieces, like lineless pieces can take me up to 30 hours.
Plus, I try not to burn myself out and provide sloppy work. Many breaks are needed.
I'm.. unfortunately not a fast artist. So, should that bump up prices? So far, I'm freelance with no outside job.

I try for the bestest of quality, as in, I take a lot of time nit picking at the smallest details no one will probably ever see. Plus, I can take outside time to study certain things for a big piece. Should that raise the price?
Unfortunately, I cannot offer 4K pieces as much as a I want. It's an issue with software. So, Should that lower the price?
I recently dropped my prices just because of that fact.

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That's about all. I thank you if you read this far. I'm unsure of what my prices should be still. I base them all off of full body illustrations, so.. a typical shaded full body sits around $45 usd. And, the one I'm working on for art fight has taken me almost 7 hours. (It's not done)
Most recent shaded piece: https://www.furaffinity.net/view/47612566/

So, should I raise my prices, keep them, or lower them?