Yes, age could be one reason...it probably is with me.
When you love his art form (notice I didn't write "hobby"), the ideas just keep flowing into your head, right? So, if you do busts, then you can actually represent all those different subjects much more quickly than a full figure on a base , with groundwork, etc. I think that has something to do with it. Maybe.
Whatever the reasoning is, it sure has become a storm.
Your sculpture reflects a young and happy woman...these people are known for their good humor and joke telling...it is as it should be. Of course, no Inuit live in ice houses any more, but it's a tribute to the whole race how they kept up the positive mind set in that enviroment.
Just beautiful how you've got it nailed.