Switched at Birth?

I have been looking for tutorials so I could do some interesting things with my photos -especially my wedding pics- for personal use and as gifts. Weel, I found this one

Tutorial: Blue-Red Greyscale by ~rocketlaunch

and thought I'd give it a shot. I had fun with it and am pleased with the results. However, the whimsical side of me came out as it got late, and I did something goofy with it.

I figured, what if we had been born in a different sequence, or from different families. Or what if -because we use to tease my brother about it- he had been switched at birth. lol.

Can you figure out which is the original; i.e. Who's who? hehe.

I have the original finished manip that I'll likely print and frame. However, I wanted to post this particular one on DeviantART because it is fun and silly, and I like to share.

It's late and I'm feeling lazy, so that's all from me for now. I'll edit later because I really wanted to say more...

I used Photoshop CS3.