How much would you pay for it? I currently ask 40k for an avatar but I'm not sure if I should lower the price, keep it the same for some more time or I've developed my skills enough to upgrade the prices.

You can take a peak at my store thread for more examples: https://horseeden.com/forums.php?f=16&t=2503

here are two of my most recent pieces:

https://image.ibb.co/mDMnBz/musterhobune_kvall_all.jpg

https://image.ibb.co/jFrgxU/stallionhalfpass.jpg

Any comments regarding the worth of my avatars/critique is welcome!

Nice work!

40-50k in my opinion :)

45-55 with wings