I like the changes.
Some may disagree with my thoughts now, but I am going to express them anyway-
I think you are the only one that can decide what will improve on your idea and intent for this painting. While others may work in a more realism sense, not all artists do. So take what suggestions may help you to achieve Your goals and realize we all only offer suggestions.
This piece, with it's colors as is, represents to my eye the beauty, joy and in some ways, mysterious connection of a Mother's bond with her child.
A Mother's love, IMO, is the strongest of all love.
The Water, to me, represents the giving of life or "Birth" of that love.
The Rainbow of "mist" represents the beauty of that connection, the colors representing the strength of that bond.
The mist surrounding the mother and child speaks to me, of the infinty of that bond- timeless and never ending.
I think you have portrayed your goals with a most joyful expression, warm and tender...I wouldn't change anything else, and again...I know some will disagree.