The gold color might have come out green if you were shooting in the shade under green foliage. Gold (yellow) giftwrap is highly reflective. If you were shooting outside under a blue sky you probably will produce some green tones.
Lenses, perhaps? These cameras can accept a wide variety of lenses, good and bad. Have you tried using the same specific lens on each camera; then shooting the same scene at the same settings; then checking the resulting photos?
I am somewhat camera literate but quite stupid when it comes to computer literacy. I find myself unable to decipher what your examples mean, or what they are intended to address. So, I will go with the flow and see what happens. I hope to remain with your marvelous site.
PS: My personal opinion: If it's not broken, don't fix it.
Communism, Hell! I think we incline more to good old fashioned dictatorship, and we ain't seen nuttin' yet!
The second photo, primarily for its greater detail.
Earthshaking! I can't help but wonder if the man in the background has noticed anything yet...