I promise your customers won't have as sharp an eye as you. I don't like sending cookies out with craters either, but craters are something you see because you have spent hours bent over these cookies with an expert eye and a magnifying glass (super reading glasses, in my case). But what your customer sees is the lush detail, the rich colors, and that something was made specially for them. I've never had a customer notice or comment on a crater yet. You'll be fine - your cookies are amazing.