Dear Kamil
Thanks for this range of entries on the theme. I like the way that the logo can be turned into an easily recognised icon.
Among the logos you have put forward I prefer the ones with the larger icon and I think I prefer the one with the blue background to the icon, capturing the fee of seas on the globe.
Of the animal parts in the globe, I like the elephant and the foot/hand the most. The wing is pretty good too but seems a bit busy, with all the feathering, especially when contrasted with the simplicity of the dorsal fin at the bottom. Also, the dorsal fin looks like the mouth of a kind of angry face, if you look at the logo without interpreting the cutouts as animal parts. Perhaps experimenting with bird heads and fish or whale tails would making it work a little better, but I am not sure.
Thanks again
Geoff Shuetrim