Discussion about comissions, MV, etc

Hello guys!! I´ve been getting into animation and MV projects lately, i would like to discuss with you how much is a "fair price" in your opinion for Mv projects

I will put some examples

Mesmerizer

Rabbit Hole


Goku

I´ve already made some projects similar to jeup and MV animations before, but id like to discuss with you what is a fair price for something like that, since i feel that im not really appreciating my work as i should