I'm liking this one...very unique idea for the compass which I think makes it more memorable. I'm not sure about the color of the word Cartographic though. I worry that it won't stand out enough . Could you try some other color combinations....teal or maybe a turquoise blue. Also try deepening the shadow effect.
#28 This really stands out! I am a tad worried about the black background for things like business cards.... you don't see that too much. But it makes the teal really stand out. Hard to choose between the teal and the turqoise (entry 27). Both look really nice. Any chance of making the text shadow and symbol shadows stand out against the black background just a little more?
#50 I think I'm going to stay away from the black background after all.
The text on this entry is much more appealing to me. Could I see this entry #50 without the green ball? I think the compass is more original standing by itself. Sorry I mean for you to make the reflection of the logo stand out more. Thank you!