what kind of modeling paste do you use? Do you keep it covered completely when not working on it?
I keep mine in a Ziploc and just take out a small piece at a time to work on (so the face, then the arms etc.)
But I find it depends on the brand as well (or is it a recipe?). The one I have purchased often is the Satin Ice gumpaste. I find it easy to work with but it does not dry quickly enough. So I purchased some tylose powder, either use a little added to the satin ice or a good bit added to home made marshmallow fondant.
There are also tons of recipes out there. I’ve been told the Nicholas lodge recipe is great but I haven’t gotten around to trying it out yet! I may try it for my next cake.
https://sugargeekshow.com/recipe/nicholas-lodge-gumpaste-recipe/