I'll be a fashionista, as long as I like the current fashion!
Right now, I would rather die than be seen in some of the outfits that are 'in'.
And the way I dress tends to vary with the seasons. In the winter, I lean more towards the classic chic, while in the summer I'm more of a bohemian. It's the weather!
In winter, I always have to think about what I'm going to wear. How cold is it out today, is it snowing or raining, do I need my extra-thick mittens... So I automatically think more about the outfit as a whole.
In summer, I just throw on whatever I feel like for the day, maybe with a scarf or hat, and a pair of cute shoes. If it gets colder, all I need is a jacket anyway.