For anyone who's not already seen this:
If you have any kind of ambition for your constructed language, you have to start with some fundamental planning. One place to start is
http://zompist.com/kit.htmlAlso, as this is clearly meant to be a Semitic language, you could do worse than to look at
http://en.wikipedia.org/wiki/Proto-Semitic_language#Phonology - if only to determine what letters to actually use;
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http://en.wikipedia.org/wiki/List_of_Latin_letters#Extensions-
http://en.wikipedia.org/wiki/Cyrillic_alphabets#Non-Slavic_languages--
https://en.wikipedia.org/wiki/Category:Cyrillic_lettersThat list contains interesting letters like Һ/һ (H/h), so that we can avoid the clumsy R/r substitution. Also Ҙ/ҙ (ð) and Ҫ/ҫ (þ) for those TH sounds (THis [ð] THing [þ]) that some Semitic languages (like Arabic) still keep, if only for some "conservative" spelling of (proto-Semitic) words where they'll now have been replaced with Z/S (or D/T, or whatever).
As for "Iota", Cyrillic now has Ꙇ/ꙇ (BTW what's wrong with И/и (i)?), with Й/й ("short i") usable (I think) for consonant versions or something.
As for Arabic, it has kept most of the proto-Semitic inventory; three H/KH sounds (h,ḥ, kh), d/ḍ, t/ṭ and s/ṣ pairings, plus some guttural goodies (ɣ/ʁ, ʕ, ʔ) in addition to voiced and unvoiced TH sounds. A modern-day Semitic language would be expected to likewise keep some of this, if only in its orthography. (Hebrew seems to do this with differences that are no longer pronounced.)
WikiWalking further should reveal more interesting details. Just suggesting.