It is hypothesised most languages have a variation on the theme of mama as a worth for mother because it is the first sounds a child might make consistently, dada not being too far off. This could get confusing to teach kids.
Also it seems you decided upon verb subject order as well.
Seems tenses are yet to be discovered and we have to have the debate over all the various oddities; stuff like directions (see Australian Aboriginals where compass directions are the order of the day rather than relative), person not present but under discussion (various Indian subcontinent languages), colours (see Russian words for blue), polychronic vs monochronic (the morons claiming punctuality is a colonial invention are not entirely wrong), counting systems favoured (do we have zero, base 10 or base 12*, some other base? What goes with imaginary/complex numbers), seems there is an English transliteration already (possibly a weak one but unknown as this point) but do we opt for a writing system (we will assume it needs one) that reflects pronunciation (see Korean Hangul alphabet, and better yet do we do ones that can be reflected and still be legible?) and do we go further and include characters for all possible phonemes
http://www.lancsngfl.ac.uk/curriculum/literacy/lit_site/lit_sites/phonemes_001/ (including the unpronounceable ones too?)? Sign language?
You have a valuable opportunity here and have already started to squander it.
*there is a reason you have 12 hours on a clock, 12 ounces in a pound, 12 inches in a foot... 60 is also a clean multiple for those things based on that. You can even count if if you count on the bones in your fingers rather than your finders as a whole, bend your thumb and you can go to multiples further than that.
