They're both really similar, but not sure if the blue one is smart enough? And the interview is this month, so I'm going to need to wear a suit jacket with it... do you think something like this would be OK... I'm just worried a jacket will look weird with the high neckline?
I think you're overworrying (is that even a word? ). :P
They both seem smart enough to me, even though I've never been to an interview before.
Not too sure about the jacket - don't think I'd pick it myself, but that's just personal taste!
I like the first one better definitely, very simple and classy I don't think you'd need to wear a suit jacket, unless it's been specified by the uni interviewing you; a nice cardigan would do the trick to keep you warm and look smart as well as being comfy. It's also something you could jazz up a bit with jewellery or patterned tights and wear again on a night out if you wanted.
The blue dress would go better with that jacket, whereas the black one would need a smarter blazer, in my opinion. If you need to wear smart business dress then go for a different blazer with the black dress i.e. along the lines of a suit jacket.
Good luck with your interview and don't stress too much about what you wear As long as you arre comfortable, and you don't wear anything that will distract you (if you have a habit of fiddling with belts don't wear one ), you'll be fine.