This is a charming snapshot of a happy moment - nothing better than an ice cream on a hot day! If this is your first watercolour of your grandchildren, then you have done a super job of it. I can see that you have deliberately played up the yellow and golds of the skin tones to show that there was strong sunlight. I also like your free and loose background. Tell me - what colours do you normally use for skin tones - just asking as I am always interested to know what people choose. I normally use Cadmium Red/Yellow Ochre/touch of Alizarin if I want a bit of warmth/a touch of cerlulean here and there. Everyone has their own favourites though that work for them.