I like the way their knees are bent and their little legs just dangle when they're flying. I also love their fluffy white bottoms like bunny cottontails. These are the Bombus Lorcorum bumblebees, the white-tailed ones.
I am especially in love with the fact that bumblebees apparently defy gravity because their bodies are supposedly too heavy to fly, given the rather slow beat of their wings per second. Or some aerodynamic theory like that. But they are determined to fly and so .... they do. Love that.
I even have a special tiny pale blue Sennelier stub of a pastel that is reserved just for doing wispy wings. Only one brief stroke allowed. I think there might bee just a few more wings left in it.
And after painting a few bumblebees, I've discovered that my favorite ones are the most loose and barely suggested. This is the one I like the best... the most scribbly one!