thanks, Keith !
I'm not sure that I understand your question
But, i'll try to tell what I take into account. For me, it is essential that the bokeh is "specific" to say the least. One has to take care to avoid the "donuts" when they do not help the image, or use them to the best extent. That's what I tried in this pic.
Technically speaking, DOF is very shallow, so precise focusing is essential. Due to the long equivalent focal length, handshooting seems impossible to me, and a stable tripod is mandatory. The fact that the lens is rather slow still enhances this.
Also, postprocessing needs some more contrast and saturation than usual.
If this is not what you mean, Keith, please let me know !
C U
Rafael