Regarding the portfolio:
Did you print it in color or black & white ?
Maybe it doesn't really matter...
TLDR : Answer Summary
The decision to print a portfolio in color or black & white depends on the nature of your work. For designers and color-focused projects, color printing is recommended for its professional appearance and visual appeal. Conversely, if your work primarily features black & white designs or technical drawings, then black & white printing might be more suitable. Some commenters also suggest considering digital formats, such as PDF, instead of physical printing.