Mistake 1: Concordant means aesthetically good. Correction: it concerns possible coexistence, not aesthetic approval.
Mistake 2: Opposing metaphors are merely false assertions. Correction: contextual indication communicates an intelligible figurative aim despite literal incompatibility.
Mistake 3: Praise words must communicate praise. Correction: warning or derision can reverse their effect.
Mistake 4: A common feature must occur equally in both terms. Correction: sharing a feature does not require equal strength.
Each correction requires analysis of the full discourse and the technical criterion, not recognition of a familiar expression alone.