Old idea, I've seen it many times before made with different techniqes.
However, this photo still caught my attention, I like how calm the whole picture is. Maybe the feeling would have increased with a less messy background. It's hard to work with black and white combined with colors but I like the contrast between the grey and the blue on your shirt, pink on lips and beautiful light warm-toned hair. I like the expression to. From the look on your face and the name of the picture I can imagine a story, you look dissapointed about the boring grey world, and even when you start colouring it your face remains that way, maybe because you've lost all hope in changing it? As mentioned, not very rare idea, but I still like what you made out of it, beautiful!