It is entitled Slide, but the child seems to be more of the subject than the slide.
The picture feels abit too tight for me, like there's no space to breathe. Partly perhaps that I can't see what the child is looking at, and I feel constricted by it. The pattern on the floor also seems to point to something, which I can't see.
You could try taking it perhaps at waist level, so that you see the curves of the slide + what the child is looking at.
Other things: The child's fingers seem abit cropped as well.