I think its just right as it is . . . nice framing with the ducks on either side. Maybe a blur vignette if you want to introduce a dreamy mood but I think the branches already accomplish that .
He/she is so perfectly positioned between the two of them! I think this is the main point that already makes it a great photo. I don't think you need a square format, asymmetrical as it is, I like it with that frame of the tree on the right.
I have a slight feeling that the frame is leaning towards the right, so I would try to straighten it, hopefully without losing too much grass on the bottom, as you need it to "ground" the image. What I also would try to do, is to brighten the whole area around the action, while keeping the grass in the foreground and the tree dark. I had a picture of deers a couple of days ago and they happened to stand in a very bright sunny spot, framed by all those dark trees and grasses - here, it doesn't have to be that extreme, but I would strengthen that natural highlight around the kid's body, and the t-shirt and hair itself (without going into an unnatural brightness). And then maybe applied that oval filter thing (don't remember the name now) that lets you highlight the subject and darken the rest of the picture. Slightly highlighting the leaves above the kid's head can give the picture a more whimsical feeling as well and make the "frame" not so dark and heavy. But as I said - it's all in the picture already, which is great, just highlight what you want the viewer's eyes to be drawn too and edit the "framing" to be darker than the subject, but still intricate thanks to those overhead leaves. I hope this helps.
I have a slight feeling that the frame is leaning towards the right, so I would try to straighten it, hopefully without losing too much grass on the bottom, as you need it to "ground" the image. What I also would try to do, is to brighten the whole area around the action, while keeping the grass in the foreground and the tree dark. I had a picture of deers a couple of days ago and they happened to stand in a very bright sunny spot, framed by all those dark trees and grasses - here, it doesn't have to be that extreme, but I would strengthen that natural highlight around the kid's body, and the t-shirt and hair itself (without going into an unnatural brightness). And then maybe applied that oval filter thing (don't remember the name now) that lets you highlight the subject and darken the rest of the picture. Slightly highlighting the leaves above the kid's head can give the picture a more whimsical feeling as well and make the "frame" not so dark and heavy. But as I said - it's all in the picture already, which is great, just highlight what you want the viewer's eyes to be drawn too and edit the "framing" to be darker than the subject, but still intricate thanks to those overhead leaves. I hope this helps.