Great job!

"humunculi [Homunculi] in Lab number 3"
"from [by] 2nd Lieutenant Havoc"

Probably typos, but I'm telling you so you can correct them.

Overall, I'd use more description and adjectives in general, but that might be my personal style. Ed and Al are reasonably in character for writing them the first time, and you write a better Al than I ever could. The one bit that I'm not so sure on was Ed freaking out to Al's question of her being in love with Mustang. I know Ed would react strongly to that, but maybe not quite that extreme? (I see a sort of slack-jawed 'WTF DID I MISS?') Or maybe so, and my Ed is OOC. Not sure. XD

This sort of speculation is defiantly something I can see them doing and it's a fresh idea from the piles upon piles of chapter 39 fics. I also like how you filled the hole of how Mustang found out what happened, since Hawkeye probably wouldn't have told him about her breaking down, she'd be fairly humiliated by it already, perfectionist that she is.

Lab number three? I'm not sure about that. I know five was where Al fought Barry the Chopper. Regardless, 'lab' should probably be capitalized here, since it is a proper noun. I defiantly see where you thought it would be improper, but the name of the place is Lab Number Three; it's not the Third lab, since the fact that it's a lab is significant.

Other than that, I thought this was really good, and much better than I could write at your age. Well done! ^^

Aww. Seems to put everything in retrospect about Hawkeye, does it not? V.cute.

Love that part in the manga, even in all the pain it's such a good piece of the story! Well done in your recreation of it!

haha I really liked it, well written!