I so could imagine that room, all the mess and cat and dog and Clint XD

And yes, that gun means he's the one that should 'retire'. :P

I think Natasha is so classy that she can keep her fond memories and let Bucky live his new life-line, quite easier than she might've thought. The image of them dancing is so good :)

Poor Jimmy, all alone, but perhaps this choice was better than what was in the canon.

I think I like the last one most, especially because of how it ends, and how it shows so many levels. Beautiful. :D