Make applications accessible to specific users?
I'm wondering whether you could just move/install the required applications to a ~/Applications directory (e.g. /Users/Artist/Applications), rather than /Applications. That way, particular applications in the local applications directory would only be available to that logged in user.

Alternatively, you could always enable Parental Controls on the "Artist" account, then restrict the set of apps that user could run. The caveat being, that user account could no longer be an administrator.