is it rude to ask a tattoo artist to build off an existing design?

My dream is to have a black and gray sleeve that looks like one cohesive piece, but that's done by multiple artists. I already have a large shoulder piece, and have my next artist in mind already, but I was wondering whether it would be insulting to the original artist/new artist to ask them to work with an existing design? via /r/tattoos https://ift.tt/3kgI2qf