problemas de calidad en pinturas

Too dark & muted.  Could use some Adjustment to make the details & colors pop more. 

Many issues with details circled below.  Examine closely at 100-300% magnification.

The faces of the animals are poorly drawn.

First: the paws (circle) are not, even with goodwill, those of a cat: 

As for the front paws, they are missing toes as of the drawing. A correct cat foot has 4 toes, with the thumb equivalent somewhere to the side. 

I know the naif style of painting takes some liberties, but the cat has too many toes and the lion in the second image has five legs. There is also a watermark in the bottom right corner of the second image. I assume these are AI and not actual paintings?