I can agree with Pierre that color system of jefydei (jeftu djedi) might be better.It'll give a flavor of liveliness to otherwise mathematically precise logical language.
This color system can be part of a totally independent Lojbani culture.
I can't agree with animal naming of months ({mlajukma'i} for July) as zodiac is not a stable thing throughout history due to precession effects. And it's not culturally neutral (some nations divided the route of the sun into more than 12 elements).
However, as Georgian calendar is official (like metric system) it'd be wise to use Georgian names.
o'anai clearly I meant to say GREGORIAN.