/ic/ - Artwork/Critique

I'm really struggling with pricing my commissions. I'm currently doing character design commissions of D&D characters, but I can't tell if I'm overcharging or undercharging. Every time I start working on one, I underestimate how much time and brainpower it takes to design a character from scratch based on a text description, and by the end I feel like I'm not getting enough for it. However, whenever I'm about to give someone a quote based on their inquiry, I feel like I'm charging too much.
Can anyone give me a look and tell me if I'm charging too much or too little? These are some examples of designs I've done, 2 different styles and their respective prices.