Hi Vianna,
That is quite an adorable little guy. The outdoor shots do have excellent color; I doubt another camera would do any better. It's too bad if you cannot utilize the outdoor distracted theme (in a way like I had to with my painting .
Arianna and Taylor). The only caution about those outdoor photos as color references are that the little boy's beautiful skin is a reflective screen highly influenced by everything around him. The orange shirt, surrounding greenery and sky really come into play here. It would be easier if you could use these photos with their original context and theme, like having the caregiver in the orange shirt in the image, or him running free in the garden.
Garth