I'd have given you a 4 if you'd continued more concrete shapes past your bottom, and especially top, borders.

U did a good job to extend the light part into base& bubbles into marbles...very good :) i like the hand sort of structure towards right

I want to change my vote. I gave myself a 4 whereas I think a 3 is more like it, o even lower... I just had a hard time coping with the dodge-ed light on the right. And I didn't work on it enough, 'cause I had to go.