This is an old favorite shot of mine, redone in Color Efex Pro (Nik Collection, as usual).
I totally did this by accident just now, it saved the filters from the shot I did before (which looked nothing like this one, had a snowy egret and a lot of green plant life) and I barely had to tweak a thing. It always feels like cheating when that happens, but sometimes a set of filters works really well together on a totally random unrelated shot. Sometimes that happens in Photoshop, a happy accident. Anyway enjoy the shot, dumb luck on my part but I think it’s gorgeous.