They're all great, BTW. It depends on the context in regards to my personal preferences. By context, I mean, where the image is to be used. Generally I like minimalistic designs, but there's a large audience out there that are opposite of me.

One thing I learned in business, web design, etc.: predicting people is hard. Who would've thought Flappy Bird would sell millions? You're smart to ask for feedback, and you're also smart to ask for a larger audience to voice their opinions.