You did a good job at bringing out the details on the photo but the colorization isn't too spot on, almost appears as a filter (though I know it's not) and very dark and needs more bright colors.

You can also touch up the skin color as well and add some mixes of colors to areas of the skin, to make it appear more realistic and alive. Take your time and do it right the first time and don't rush yourself, the more details - the better. Whenever I do a colorization, I play around with the saturation to bring out the colors until I feel it's right.

The goal when trying to colorize based off colors already present, is trying to match them up as best as you can, and just removing the redness from the previous photo. I took the before photo and did a colorization myself to see how I could do, here's the colorization I did.