You had better take yourself off to DPUG with this question as this thread will be closed and/or deleted as wildly off-topic for APUG.
Or you could try posting in the "hybrid" APUG group where it won't terrify the horses
Alternatively, remove all the scanning references, and post images of your negatives on a lightbox and ask for comments from those who know how to "read" a colour negative.
(Scanning introduces far too many potential blind alleys to make it useful for diagnosing development problems. )