"HEY, DON'T touch that" or "What do YOU think you are doing, PUNK" Or "OOPHS, I didn't mean to do it Mom" would have been my caption. Beautiful and charming image. well done.
Great shot! Well lit, good composition, and besides all that, a beautiful baby... I credit my grandson with being the major reason I started shooting photos again. Had to buy a new digital still, then a video camera, then started with film all over again. I could shoot him all day long. (Hey that doesn't sound quite right, does it?)