I need your help, please!

Ok so I've been wanting a mineralize skinfinish from MAC forever and with the 2 that came out with Sheer Minerals it makes me want one even more, BUT I have no clue which color to get...There's like 2 I think may look right but then I don't want it to make me look like I have fake tanner on my face! lol So here's a pic of the ones I'm thinking about and I would appreciate any help, advice or opinions! Oh and btw I'm a NC42.
















OR would it be better to get a MSF natural, I know I've seen a couple girls that are the same number as me and use this color...



But I'm thinking with that one it might be close to the color of my actual foundation so it wouldn't be worth it to use.

Thank you in advance if you help!