Thanks for the shout out! Glad you like the design 
It was something a bit new for me (first time working with someone else and quite different from my other designs). I had a lot of fun with it!
For the snow, I cannot take any credit. The best place to go is: [TOMAJA Tutorial] Snow, Snowflake & Winter Dream for Every Watch Face [How to]
In terms of the arms, legs, and hat, there is unfortunately no easy ‘animate’ option in Creator (by the way, never apologise for asking questions! We all started fresh at some point). You can edit the ‘rotation’ field to make things move though. For example, the code for the arms is (-clamp(sin(#DWFSS#*0.3)*10,-90,90))
It may look scary, but there is a nice discussion of the code here: How to make elements loop a movement? - #6 by mikeoday
Hope that helps, my friend!