Hello!
Many thanks for your effort and tips, Lara and John! Very nice! I see your points. Ohhh, is that a long way to be good.
I do so much on details, although the whole impression is the first. I didn't really do a pre-sketch, only outlines not to move out of canvas

and directly painting on (inside-out) for eyes/brain-training.
OK, this weekend I will try to repair the problematic features, what John's digitally remastered version pointed out.
Painting is more complex then I imagined before (the Bob Ross effect=26 min.)
Thank you again to get time for me.
Ciao.