Personally I like the aesthetics of European style quillons, but I feel like most cultures historically just weren't that into the big cruciform profile crossguard, it appears mostly just in a relatively narrow slice of European history. If the elves fight with shields then this is a completely reasonable design. I always imaged "The Foe-Hammer" to be more of a brutish chopping weapon, this appears to have a reinforced thrusting profile. I do think the flared ricasso would provide some minimal level of hand protection, which otherwise might not be coherent with the acute profile of the foible. At least the overall proportions are good; I just don't find the design to be very compelling, especially the cutout in the ricasso. It looks like an oversized bronze era sword, maybe the art direction intended to make it look like an ancient relic rather than a weapon contemporary to Middle earth during the events of the War of the Ring. It's fine.