Is there noise?

[lotteotte]

I took this photo of my kids some time ago in the shower of a pool. The pool is on a rooftop, so the light from all sides was just perfect. I would like some feedback on the composition, and on the "noise". You see in the EXIF data that is was taken with ISO 800, so I guess there is some noise, but somehow I fail to understand or see it. Kind guidance much appreciated.

From Lily and Louis in the shower of the pool

Camera: NIKON D40
ISO: 800
Exposure: 1/125 sec
Aperture: 5.3
Focal Length: 46mm
Flash Used: No

[HellomynameisRavi]

I can't really see any noise, I think there is something around your sons shoulder, I cant tell if it is noise or blur due to the background.

[MrJones]

if there is noise - you'll see it.
I've checked out the larger version and still can't see any noise.
I like this photo and expressions - brings out the fun they had

[theotherhans]

I can't see any noise either. I like the composition, because it looks natural (which I think you intended) and suits very well to the situation.

[autofocus]

Noise occurs from not only high ISO settings, but also will be more prevalent in underexposed dark areas...without being able to enlarge to 100% it's hard to say if there's any signs of noise. It certainly looks good, and BTW, a cute grab shot

[lotteotte]

Thanks everyone, each response was really helpful !! I also learned a new term (for me) "grab shot". Here another grab shot in the same location, and yes, I was definitely lucky to have my camera with me on that day.

From Lily and Louis in the shower of the pool

ISO: 1600
Exposure: 1/125 sec
Aperture: 5.6
Focal Length: 28mm
Flash Used: No