Second outfit is definetly more stylish, i would think she's confident and knows what she wants, but she is predictable, i'd prefer the first outfit and she seems to feel comfortable without the need to impress, and i think it makes her standout more, matching it witb her hair she's definetly different (being herself) and seems a spontaneous girl
I personally prefer the look on top. I'm not sure why, I just like it better. It doesn't matter a lot how people dress, although obviously someone who is in stained old clothes, no bra, pajama pants, etc. wouldn't create a great first impression to me. But I am very causal and appreciate casual clothing. I usually don't even pay that much attention to someone's outfit unless it is something like the stained clothes, no bra, pajama pants thing.