This removed the chance for her to show her knitwear clothing collection to people in the industry, some of whom might have liked her work enough to offer her a job.
Speaking of layering, other garments that can be worn on top of a flannel shirt are things like a sports jacket in a more casual weave, pattern, or color or knitwear like sweaters.
The key here is just to cover up the bolder red hue with something in a more subdued blue and if you don't own a red waistcoat, red knitwear could also be an option.