I dont see a green cast. The edit by ronaldjace on the other hand seems too reddish for the skin. But maybe its the monitor I am using.
But I think the main point in the picture is her sweetness, and I think you captured that well. Nobody can disagree that she is sweet. The rest - technical and compositional - are secondary.
I like the green colours: it makes the picture so refreshing. Also it contrasts well with the browns of the bench. And texturally the rough bench also works well with the girl's smooth arms and legs.
The only negative I can say is perhaps need more headroom as the focus is her face and smile and that creates an unbalance in the picture.