Here are some cosmetic changes to gears that I think is cool and will make weapons look better (e.g. Leviathan Blade is considered to be less cool than CIV, the one I will suggest will still make LB not look as good but at least better).
1. Ascended Calibur - We need to distinguish it from Tempered Calibur so why not make the blue line in the middle of the sword longer?
2. Leviathan Blade - Make the long blue line in the middle glow (in a similar fashion to the light beam from the top of Nitronome but in a line)
3. Valiance - Same could be said about Valiance. Make the blue part above the handle glow like a light beam
4. 5* Alchemers - If you look at the 5* Alchemers, it looks basically like the 4* one but with an extra vertical tank of fluid (whatever you call it). My suggestion is that you add a long horizontal tank that locks the 3 vertical tanks into place. The horizontal tank is connected to the middle of the face and back of the gun by a metal strip.
These are the only ones I can think of right now, I will add more when ideas come to my mind.
Constructive criticism would be preferred.
bump.