It is generally agreed that your makeup portfolio should contain certain things. How many of these things is not agreed, though I think it is safe to say that quality tops quantity. You might want to think twice about having only one makeup to show, though, even if it’s a really, really good makeup. You need to show that it wasn’t a fluke. Oscar winner Matthew Mungle believes you should have examples of beauty makeup, small and large prosthetic applications, character and age makeup with and without prosthetics, and creature prosthetic makeups.
Kevin Kirkpatrick echoes my point: "A makeup effects portfolio should only consist of your best work. Honestly, it’s not about quantity, it’s all about quality."