Sweet. Looking great John!
I know you have limited time to apply but as a request can you slightly darken/lighten the surface color/skin of the reindeer to differentiate them. I'm thinking of your grandaughter who I know will get a kick out of naming each one. Of course you realize you are going to explain to the kids why Rudolf isn't pictured in this one.
Note also: If you make them move I don't think you need to offset the reindeers' legs. They are trained to fly in synchronistic rhythmetric (and if that for the jingling bells... amazingly silent) harmony.
Ah, the joys of being the Tinkering Gnome *and* a grandfather.