When I'm teaching or presenting, I don't like it when my clothes become the center of attention, so I'd definitely skew towards #1. Over the years, I've found that what I wear can make it easier, or harder, for others to focus on my ideas instead of my physical appearance. Keeping the focus where I want it gives me more control over the situation and makes it easier for me to achieve my goals.
Rachylou's comment that #2 is a media intern look as opposed to the look in #1 is spot on. Like it or not, others use our clothing to slot us into categories and then use stereotypes associated with those categories to imbue us with qualities and values associated with those stereotypes. The easiest way to cope with that tendency is to choose my clothing with an eye to what categories and stereotypes my outfit might skew towards.
My personal choice might be to dress in a fashionable, casual, trendy-chic way, but that might make it harder to achieve my professional goals. The question comes down to how much effort I want to put into re-educating and opposing the associations that might accompany my personal choice.