The rich blue in this photo is wonderful and I think there's just enough contrast. However, the tree between the two human figures draws attention away from them. I'd like to see their silhouettes distinct and separated, unless you wanted to illustrate the friendship theme, in which case I think the two silhouettes should be joined on their own accord (i.e., holding hands or something like that). Still, it's a very striking picture. What time of day was it taken?
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