JP - Just want to learn to draw.

[Abnormal]

more stuff, I spend a lot the time researching and trying understand the painting from master Borguereau. I learned a lot. XD  

Borguereau's technique:

In some of his later paintings at least, Bouguereau painted lighter areas somewhat thinly over the dried, darker undertone, producing a scumble effect--that is, a complex optical sensation in which light, opaque paint, thinly applied so as to read semiopaque, allows the dried, darker underpaint to influence the final effect. 

The resulting sensation, if properly done, is that of increased coolness of color temperature, softness of texture, and a translucent quality very much like that of the youthful skin of light-complected women and children. Bouguereau applied the lighter lights and highlights heavily enough to approach or reach true opacity in the flesh tones, with a degree of translucence evident in certain places in the darker middletones, and more so in the shadows.

The effect, for which Bouguereau is renowned, is that of actual human skin, which is itself translucent in reality.