I thought that thing was SUPPOSED to be HUGE. IRL a flamberge is a 2 and a half hand weapon. with a nearly 4 foot blade.
All that said sand it. Paint it. Wrap the hilt. If its MHS add a big emitter. Change the pommel.
https://www.ultrasabers.com/product-p/z-pommel-guardian.htm I like that one. Add bits to make it more techno/Steam punky.