I find these paintings excellent, and very clean and accurate. One can perhaps regret a lack of shadows and contrast in the skin, of the face and arms of the characters.
Also, the shadows of the Queen of Heart on the face have a too sharp transition (not blended enough) with basic/highlights and her red corset is lacking darker shadows on the left side and upper sides. The black color of the heart in the corset could also be more highlighted on the upper side to give more roundness 3D to the breast. With the right side very dark, and a slight grey highlight on the left side, it gives the visuel impression that it was round and empty, and opened widely like a balloon, with the light coming from 04:00!
Illustration of my thoughts on the PC:

But I love these paintings, the best seen for these specific flats. The Napoleonian soldier in Russia is also quiet impressively painted !