Hi. I liked the sepia, but thought it was a little too strong. Maybe a lighter shade. I think the brightness and contrast could be brought down, too.
I liked the wider shot, too, because it expressed more solitude. But, the line of the fence bothered me, so I cropped it. I also lowered the brightness and subdued the man's shirt, because I thought it was attracting too much attention away from the main focus of the picture -- which for me is the playful expression they both have, which suggests the 'moment' between the two, which is always a great catch when taking pictures!
Here's my thought on it. Like I said, I cropped it because of the fence, though I liked the wider shot better (except for that):