I see some things I wouldn't be happy with.
There is motion blur on the boys foot. There are some weird teal coloured spots in the foliage. The pair on the right are exposed more brightly than the pair on the left. I think brightly exposed is okay if that's what you like, but I think the exposure on the two pairs should match. It looks like some details may have been lost in the shirt the lady on the left is wearing, due to pushing the exposure a touch too far. It is hard to tell in looking at a little JPG. Things look a little weird around the boy's head on my screen. It almost looks like too much separation between his head and the background, but the background is sharp. I don't know if that is a mask that can be improved on or not.
I think a composite image like this can be really challenging and pretty ambitious. I think you've got a good start here.