I think you shouldn't be afraid to change things that don't work. There are always ideas which seem great in concept but can't be easily made practicable. If you need to change your legion crest, I'd say go for it.
Originally, the Lightning Bearers symbol was a blue shield bisected by a lightning bolt, but I changed that half way through the project. Look on the bright side, at least you didn't have to resculpt a legion symbol on 50 shoulder pads.
My suggestion would be to tone down the number of colors involved, look at the other legion symbols, they are relatively simplistic by comparison to yours, the only ones which really stand out detail wise, would be the word bearers and Alpha Legion, but even then, most Legions limit their Basic heraldry to 1 or 2 dominant colors. I think you should rethink the colors of it, and maybe the complexity.
For example, make it a contrasting colored shield (to the purple armor) with three rings inside all of the same color.
Maybe drop the shield entirely and make it three different colored rings.
Edited by Athrawes, 13 October 2015 - 06:47 PM.