widestudio:
Nice, clean designs; thank you!
Entry #2 - Although I like the open-wing design, consistency in lines (see comments on #3 & 4 below) win out.
Entry #3 - I like the consistency in angles between the back of the bird and the downstroke in the "f"
Entry #4 - Same comment as in Entry #3, but the top line on the F seems a bit distracting. The color gradient looks great on the screen, but I worry about cost of printing shirts at fund-raising events.