Give your roommate thanks from me, these are nice - Although personally I think the rotated 'i' obscures the quality of work slightly, it may flow just a little better when vertical.
maybe instead of a fallen 'i', a leaning 'i', against the other letters? A similar effect but much more readable as that could be misinterpreted as "_." Still excellent work!
Thank him from me too! :) Does he plan to join? I really like the circular arrows on the 'O'. It's like a sign of moving on in the natural cycle. (I agree with hayden about the 'i')
Wow, say thanks to your roommate. I like the top right one the most, although I think it would look best if the "i" was just normal (maybe still blue). Definitely liking the arrows on the "o".