Oh My Gosh! That is the saddest, frowny face I have ever seen on a Teddy Bear! Colors, focus, and details are good in this capture. The Teddy Bear definitely projects sadness. As good as the shot is it just needed an extra element to make it a stronger more compelling shot that makes your greater audience linger longer to study the picture. I think it needed something extra that would have given it a little more 'umph'. Hmm, some suggestions: a child such as the child is walking away leaving the bear in the chair or a woman walking away from the sad bear with a cuter smiling bear in her arms and her purse open ready to dig out the credit card to pay for her find. (not voting)
This is a nice image that to me, definitely conveys sadness. I think you did well with the lighting and textures, with the exception of some blown highlights on the chair.