The sense of shape and volume as always is great in your work. I think the only thing I'm missing is that there's no sense of contact between her bottom and the beach blanket. Some sense of squash and stretch would add to it I think. Otherwise, great style, pose, color choice and shading.
super cute! I really like her expression and the reflective light you used. Green is always such a hard colour to shade with (in my opinion--it's hard to not make people look sick when shading skin) but this looks absolutely fantastic! And there's so much warmth to the rest of the colours that it's really a nice, refreshing complimentary cool colour! Very summer!