Jolly Angels

I am waiting for my editor to discuss the "Wings of Angels" book. I am trying to explain that the angels are supposed to look strong and Jolly. It's funny but I have never seen an angel depicted as jolly before. I wonder why not.

In the story I'm writing they are full of fun and joy and a little bit of mischief. Could anyone point me to an artist's rendition of a "jolly" angel?