Hey bud,
I'm not really 100% on any of them to be honest, the general concept of a blueberry isn't really very well carried out i'm afraid to say. Spend as much time as is needed on your main brand, time and care at this point will pay dividends further down the line.
If it were me, i'd got with a very striking blue color scheme with gradients. If you're gonna go 'Blueberry' then i think it has to be blue in the main.
I can't post URLs yet because this is my first post, but drop me an email if you like and i will help you out if i can.
Carl. (
carl@aijologodesign.com )
