Marshall.
Like Clayton, the first one I find is so impressive.
Here, Dani is caught in a candid moment. The background is not distracting and we are there with you, watching this little chumkin and we're are enthralled. It's all genuine!
The others while fun are not so magnetic to draw on in and make one return. Why? I think that the very bright, uniform and saturated colors are not natural to our eyes as we developed for the past 50,000 years. There is no reference for them built into our genetic code or hard-wired animal experience.
This the bright red, blue and yellow plastics overwhelm our senses and assume importance which dwarfs any relevance of the child, who is already known to us. The red frame only serves further to distract us as it only further increases the importance of red over the soft tone Dani!
If the design of the red rectangle against the red angular slide is what you want, then its a great success, in fact I like it. Then blur the child!
Try an experiment if you like. Take the last images for example and simply convert by your favorite means to B&W. I did and found a wonderful new picture where Dani once more was the star.
Try it, you'll like it!
Asher
BTW, what's the lens details and the reason for the nice soft background.