Hi Ed,
It could be that the second is real under very special circumstances except for the violet and purple color as they are extreme.
Nicolas hit the nail on the head. What do you want and why? The second might be a version an art department might make to match the color scheme of a particular article in a magazine or product on a billboard. However, that is merely using the picture as a kind of wallpaper or less important background one might get from a stock agency.
I don't care about real! In OPF we are, as Nicolas pointed out, paramountly concerned with the photographer's and clients artistic intent and purpose. Is it effective? Which would you prefer on your wall? Without knowing more, the first would be chosen, but for a room with a lot of wooden furniture. However, the tree itself is not really magnetic in it's current placement centrally in the picture with no special features that make pull one in and provide a path for the eye and mind. Although I'm the not any important voice in photography, let me share with you some esthetic preference: I don't like pictures cropped tightly, preferring freedom for the object of interest. I like space, but that's my own sentiment. I may crop of a shoulder or even a forehead in a portrait, but that's an artistic conceit carefully thought out. Lacking a particular design imperative, I go for getting the whole subject in a milieu that works and allows our brains to create our own stories when we look at your picture. Your tree has missing ends of twigs, but without any obvious design reason. The central placing is not, to my eye, helpful in the presentation.
Thanks for bravely sharing, because this testy subject of color change is a worthwhile area to investigate. It is, however, fraught with both easy benefit and easier disaster for your pictures. I'm very scared to make major changes. However, subtle changes can be powerful and beneficial. Think of the use of gels, a golden reflector to provide warm cold or other nuanced light. In that way there is control. To change Mother Nature as you have done is much harder to do well, however it's very much worthwhile doing.
Asher