I'm not sure 13,14, & 15 should be here. That's Black Widow & Madam Hydra, and some hydra goons in the background, from Avengers: Earth's Mightiest Heroes.
Bruce Timm has a really weird fascination with BrucexBarbra. Every Batman thing he works on he ships to two together as though it's canon. BTAS, Batman Beyond, Killing Joke.