Easy peasy lemon squeezy! Here's the guide for clients about using the "Private Content" for payment
My specialization is Character Design, but sometimes I post Commission Slot auctions on YCH.Commishes and occasionally will post slots on LavaTop in the future.
On my Carrd you can find my prices, what i will/won't draw, my Tearms of Service (TOS) and other details.
When we discuss your commission, I will create a private content, so you'll be able to pay.
The auctions take places on my Toyhou.se and YCH.Commishes. When the auction is over, I will create a private content, so you'll be able to pay for the character.