It's always better to do the Gel Nail Treatment first then do the spray tan, if you did it the other way round your client would be sitting for over an hour after having just having a tan.
They would end up with crease lines and the client would be very uncomfortable.
Only problem is she wants clear gel nail extentions with a red varnish. This will take a while to dry. The varnish matches her outfit so she really wants that varnish over. Doing this this morning so really need some advise!