Dear Diane,
I second Alex's observations about the quality of your work - I have enjoyed everything you have posted and must apologize for being so reclusive in responding online for past number of months. I find this to be an excellent piece of work.
For my two cents worth, I would lose the roses in the upper left, and revise the roses in the SE quadrant. I like the use the roses as a foreground element to set the figure in space and to break the expanse of what would otherwise be a somewhat monotonous space
With regard to your source material for future commission work, I do agree that the hunched forward pose is tough to articulate as a graceful 3-d shape. When you drop in background elements you just want to be sure that your light color and direction are consistent with the light on your subject.
That being said, I think that this is a lovely painting, and certainly worthy of submitting to a figurative or portrait competition ( once you decide what to do about those roses!)
Aren't you glad that we are not all in your studio standing over your shoulder
