CLOSE
If you charge for the initial price, then the creature will be a surprise to you, but you can:

+5$ Сhoose the gender and number of limbs(paws, wings, fins).
+10$ Floor, number and purpose of limbs (paws, wings, fins)
+15$ Gender, type of creature, number and purpose of limbs.
+20$ Gender, type of creature, number and purpose of limbs, feral or furry NSFW
the order is like this :
123
№1 - https://www.furaffinity.net/view/38244647/
№2 - https://www.furaffinity.net/view/43181392/
№3 - https://www.furaffinity.net/view/43222301/