As a native English speaker who only has a passing familiarity with other languages I find "Kleice" difficult to pronounce and unintuitive to remember or spell; if your target market includes others of the same background it might make a poor choice; if you're happy to restrict your target market to people more familiar with whichever language it's sourced from it may be a fine choice.
The other suggestions all pass the memorable and easy-to-spell tests and would probably be fine if you're happy with them.
The "Giraffene" and "Cowbright" logos don't really look like a giraffe or a cow to me. I can make it out now that it's been pointed out, but I never would have thought of them myself otherwise.
I don't have any strong feelings either way about them otherwise.