I think the actress here, The Nerdist's Jessica Chobot, was not the best choice. She looks the part, but she's is a stiff actress with poor voice quality, coming off sounding more like Tara Reid than the badass Samas Aran. I don't know if she's had acting lessons, but they would definitely help and I do believe she could get much better- becoming a Samas worthy of the name.
Sure, these are limited complaints, but for a fan video it is pretty damn good. Rainfall makes some quality fan films, and I wonder what they could do with a bigger budget, a better director, and better actors. Granted, they are sure to improve over time regardless.
So Nintendo, you are up now, are you going to give fans some of this made by you? I recall a decent actress from the Metroid: Other M trailer, so you already have someone more than capable.