The hair is amazing! I really love such detailed drawings where every fold, hair or wrinkle is clearly there. It makes a really great impression and I can see how much effort was put into the work. And then all these vivid colours are not important because the real art is in the lines.
Lovely lines and low key colors. It has a nice feeling to it. The golden diamond backdrop really picks it up with a little bit of saturation and saves the image from being only dull tones. Very pretty.