mock interviews

I cannot believe how long its been since i last did a post, such an awful blogger! I've really wanted to post, but not really had any inspiration or time to do so.
Anyway on Friday its our mock interviews and i'm pretty nervous, but my main worry is what to wear! So i was planning on wearing my black skinny jeans, with my sheer black shirt (pictured in my other post) and my tweed blazer. Now, when i've been speaking to my friends apparently black skinny jeans aren't very 'smart'. However, i've run out of time to go out and buy a new outfit. So i need your help, do you think skinny jeans give off the wrong impression and are not 'smart' enough?
The picture above shows two very smart, simple outfits that i think work perfectly for work or an interview and thought they'd be a useful bit of inspiration to anyone like me going to an interview and in a complete dilemma about what to wear. (Plus the outfit above is with skinny jeans and looks perfect!)