I really think this image could do without the little inset on the bottom-left. I find it very distracting and it fills up some negative space that would otherwise be really nice compositionally.

I really like how the thumbnail works with the full size picture. The composition, colour and quality is excellent. It is not a particularly striking image, but it's well on target for a "joy" theme.

It's probably just me but a long strand of ballons like this make me think of car lots advertising big sales instead of joy.

I think I would've rated this higher if the inset picture wasn't there...it detracts from the main image.

The colors and inset photo drew me to this one. But I just don't see the relevance other than perhaps these balloons are associated with some sort of celebration like a birthday party which I guess would be "joyful". Around here in Southern California something like this is even more likely to be associated with a car dealership sales blowout or new home tract grand opening. So it doesn't immediately hit me. Sorry.

I really like this concept, and I love how dark and saturated the image is. I think you've done a very nice job at showing joy without stamping it on someone's face.

I'm not sure I get the point of the embedded image though.

I am divided on this one. I enjoy the bigger image immensely and to me it does evoke a joyful response. However, at least for me, the insert, sort of a picture-in-a-picture arrangement, detracts from the "JOY" aspect of the image and instead makes it seem either a) journalistic or b)tutorial. So, while I think the picuture is great, I would suggest removing the insert to better suggest the "Joy" theme.