Critic: The contemporary novel is incapable of making important new contributions.
Conclusion
The contemporary novel is incapable of making important new contributions.
Evidence (the evidence is clear)
Contemporary psychological novels have been failures. Contemporary action novels lack social significance. Contemporary romance novels are stale and formulaic.
Evaluate
There are missing link assumptions being made here: "if failure, can't make important new contribution"
But those missing link assumptions would be pretty impossible to replicate on an analogous parallel flaw. So we should probably think instead about the fact that this argument's conclusion is about all contemporary novels, whereas the evidence only deals with psychological, action, and romance.
Are those the only three types of contemporary novels?
Goal
Let's look for a broad conclusion: All X's are Y
Then let's look for premises that deal with subtypes of X, but not necessarily all subtypes. And they should be saying things that aren't necessarily revealing in terms of whether or not that qualifies as Y. The evidence is clear. Blue X's are A. Red X's are B. Green X's are C.