Help picking a tie color

I will be wearing the attached suit and a similarly colored shirt, light blue. Don’t have to coordinate colors, though other members of the family are wearing green dresses. I also might change into a white shirt (not sure if I’ll wear a tie but would like to have a second option.) Would a green tie or green pocket square work? I think I’d rather not wear red. I was thinking a cool floral tie might be nice. The theme of the evening is enchanted forest.