Thank you for comment! Especially, a difficult thing is not done. Paints are thinly painted many times and piled up, and neither a black nor a dark color are mixed with flesh-colored, and the color is not made impure. The picture is varnished at the end and do the gloss of the color.
Thanks a lot for the answer! It's always great when other artists want to share tips! I was also wondering whether you dilute the acrylic paint? And in that case with what - water? Because I played around with acrylics for the first time the other day, but I found it reeeally difficult to make thin layers, because it's so thick and pigmented!