Thank you Steven! I knew there was something wrong with the neck and shoulders. Just could not figure out the exact problem. Thanks for pointing it out.
I haven't seen any problems with the shadows on the breasts area. But now that you said it I have to agree.
The perspecive of the frame is not wrong. That actually is a corner desk below it. Perhaps I should try to make the rooms corner more visible.
Thanks for the advise. I will make the corrections. It is good to do it now when it is still easy. I am also going to paint this subject with oils when I have the time.
Thank you Tim also although I couldn't really understand the sentence "The head appears exempt from the compression of the figure below it" because of my not so perfect english.