I can't see a good bokeh in this photo! The tree is a little OOF and i think you had great objects there, you could have done a great shot too! Try again, i'm sure you'll get better results!
This DNMC. You do not have any bokeh in your photo. All you have is an OOF background. That is not what the challenge calls for. Go thru the challenge photos and notice those with little circles of light just behind the main subject. Ask the SC to do a tutorial on how bokeh is created.