Looks OK to me as well. Can you be more specific about what you see as "grey and lifeless" midtones.
Tell us specifically what isn't there that you'd like to be there.
As another APUGer has asked, is this a print scan or a neg scan? If it is the latter then how do you know what a print will look like?
We are getting more and more " problems" on APUG which I suspect are to do with scanning rather than negs and subsequent prints