Hard to say. I used to use this structure as my bible but I felt some of the comparisons I was getting back were very simplistic. Basically some students were only pointing out obvious similarities but failing to comment on subtle differences between the texts. As long as you bear in mind that subtle differences matter every bit as much as similarities, you should be fine to use this structure. This example might also help (it’s cultural context rather than theme but the same basic principles apply) http:///2013/12/sample-comparative-link/
Although both stories have ironic endings and send somewhat similar messages. "The Story of an Hour" is more in tune with a woman wanting to be free and able to be her own master. Unfortunately this cannot happen unless her husband is gone. In "The Necklace" the protagonist also wants to be free but in a different way. She wants the freedom of being rich and thus be able to socialize with high society. May, Charles writes in, Magill's Survey of World Literature,"This, in one way or another, is the price to be paid for crass materialism and false pride. Had the characters been less superficial and been willing to admit the loss of the necklace, all of their misery would have been avoided."