Johan
Your color become richer and more texture for color too, and getting more three dimensional aspect for shape which creates form and volume too, each color getting more range of color as tone of color that makes richer, keep on going. 

Anjali
You have good composition for painting and nice design too, you captured light of full moon and nice reflection of water, also good texture for feather makes bird lively, You have been painting subject of nature and animals but shows your interest and expression of painting, good.

Evgeny
Now you got much strong lighting and shadow which creates good contrast and stronger expression of landscape painting, also you have good perspective and depth of beach scene, good.

Tatyana
Painting getting more concentration for figure which better than too much informations for your painting, you should focus what you wants to show most which your son, and you don't need any explanation of his situation you show his expression creates his atmosphere and feeling, it is not illustration so maintain what is your subject.