WOW. This is a comic or a cartoon that must be made. If only we could see her legs, then it'd be perfect! (as in skin). Grey pants work too, for soldier thing, but Adora's legs are better than Baywatch. Really EXCELLENT ART here.
It's also a fantasy sword, set in a fantasy world, with fantasy characters. That sword could weigh 100 pounds, for all we know. Like Thor's Mjolnir, which weighs a ton, despite being only about a foot tall.
Still, I don't know...if I remember the original series correctly, she was trained to be a soldier for the Horde. If this gimmick had held true for the 200X remake, I would think that she'd have some meat on her (along with a kick butt fighting style), giving her enough strength to lift that blade.
Oh well. Anything for a laugh.
(And I'm sure that rabid watchers of all three series will correct me)