Use silicone-based foundations that look flawless under the harsh flash of a photographer’s camera.
Use high-quality heat-resistant fibers that allow for crimping (to add volume) and styling with professional tools.
Even the best costume needs the right presentation. "Extra quality" extends to how the cosplay is documented.
If the character wears leather, use high-quality faux leather (PU) with a realistic grain or genuine lightweight garment leather.