Yes, as with all commercial art, the purchase price is that which is commissioned.
If you want it pink with purple spots...you engage someone to create it for you.
Copyright Law defines the owner as the creator, not the purchaser...so if there were to be a second 'sale' that's the sole responsibility of the creator.
If you were to engage the work to be 'exclusive' and have the rights transmitted to the purchaser you can...but that's always with the consent of the original rights holder...aka the creator.
Hopefully that makes sense....50 years in Architecture I "know my rights" ...