If theres anything I learned from painting and building WH and WH40k miniatures... mistakes are not mistakes. They are new design ideas. My helmet had quite a few problems I was able to fix. Couple examples, and I hate to point them out believe me. On the front jaw piece, I have a streak of silver. Thats slightly covering up where spray paint dripped and bulged. On the left side of the jaw is a brown scorch mark. That's covering up a huge spot of where the green paint got taken off by a finger while still sticky.
Top left helmet brim? Crack and hole from resin being sanded too much. Fixed with excess silver paint for battle wear.
Mistakes we make usually cover up and change the artistic outcome of the helmet to something unique