Sometimes what starts out as a good idea may not always end up as one. For example, these two. Basically, Mystique is attempting to morph into an image of Storm, but aside from the mohawk, she still looks like Mystique, just with a new haircut. They were both made from the same figure to have similar qualities but in order to tell Mystique apart, she's done up in her usual colors. If it weren't for the same pose, facial features, and them standing together, this idea of having her shape shifting into Storm, would be lost entirely. It "almost" works, but as a "VS" concept, it's not quite there yet. Maybe if specific details, like similar capes, or matching costumes were added, might be more convincing. Perhaps a statue version of them at each other's throat would be more visually exciting. One idea usually starts another rolling!
You have a ton of extra fodder figures like the ones you've been using lately? The Lady Death and such. Id be interested if you had any for trade.
Again, cool idea, just needs a little smoothing and fine tuning.