Presenting it so it can be judged in two minutes

Reviewers give a portfolio minutes, not hours. Each piece needs four lines: the problem, what you did, what you decided and why, and the result. The reasoning is the part that distinguishes you — anyone can show output, few can show judgement.

Lead with your strongest piece rather than your most recent, and say plainly what was yours when the work was collaborative. Overclaiming is the fastest way to lose a reviewer who knows the field.