The example has been made by S.I Serikov in Adobe Photoshop.
This tutorial describes a method of colorization with AKVIS Coloriage where a photo is colorized twice: first the whole photo, then certain parts of it.
The author applied this technique to colorize a photo of a young girl.
Below you can see two photos.
On the left is the photo of a girl after the first colorization with AKVIS Coloriage and a touch-up in Adobe Photoshop (creation of the smooth blue oval with the Brush tool).
On the right is the same portrait after the second processing with the AKVIS Coloriage plug-in and the use of the Replace Color command. On the right photo the girl's complexion is more vivid: the cheeks are rosy and the eyes are bright. Besides, the Replace Color command allowed the light color of the stripes on the dress to be replaced with white.
Follow the instructions below:
Activate the Eyedropper tool and select a light blue color, as if the girl's eyes reflected the color of the sky or of the walls of the photographic studio.
Activate the Pencil tool and draw strokes inside the "keep-color" outlines. You should remember that the larger the stroke and the closer it is to the "keep-color" outline, the sharper are the borders of the colorized area.