I’m not sure. I usually write all that you mentioned in my delivery message, so I don’t feel the need for a follow-up message. I would feel like I’m burdening the buyer with my “please hire me again” subtle message, on top of sounding desperate for more orders. Also, how many times do I need to thank them? Because I often already thank them when they place the order and then again when I deliver. It feels redundant to do it a third time.
Consider also that some buyers completely disappear after placing the order, to the point that the orders need to be auto-completed, so I’m not sure a follow-up message is a go-to method to gain “lifetime” customers. I’d rather leave them their space and freedom to come back or not, if they like your work they will come back anyway, whether you message them or not.