Fâzerok -- Eastern Romance conlang

A few weeks ago, I had the idea of making a Romance conlang influenced by
Persian (Middle Persian, probably), and I've been working on the language,
called Fâzerok, on and off since then. Here is part of a description of what
I've come up with so far. I'd appreciate any comments or suggestions; I'm not
experienced in Romance conlanging, and I know very little about Persian.

PHONETICS & ORTHOGRAHY

(IPA symbols use Kirshenbaum transcription.)

There are six basic vowels in Fâzerok: three short, and three long.

a - pronounced somewhat like [&] (as in 'cat'), but further back in the mouth.
à - pronounced somewhat like [A].
e - pronounced as [I] or [E] within a word, and [E] in final position.
i - pronounced as [i].
o - pronounced as [U] or [o] within a word, and [o] in final position (though
the [o] is short compared to English 'o').
u - pronounced as [u].

There are two legal diphthongs: [ai], represented by 'aj', and [au],
represented by 'av'.

Generally the stress in a word falls on the last syllable, except when it is
indicated elsewhere with an acute accent:

kantàz [k&ntAZ']
éssa [Es's&]

When the acute accent is on the letter 'à', the letter becomes 'â':

Fâzerok [fA'ZIrUk]

The consonant sounds are as follows:

b p   t d                      k g   q   '
v f   s z   S Z   tS dZ   x          h
        r l                    j

The consonant letters work as follows:

b, p, t, d, f, l, s - essentially as in English.
h - Mostly as in English, but note that 'h' is pronounced in all positions.
z - indicates [z] after e and i; [Z] elsewhere.
r - indicates a trilled r.
sc - indicates [S].
zs - indicates [z].
j - indicates [j].
v - indicates [w] after a; [v] in all other positions.
c - has several realizations:
   When before e or i, it represents [x] after o, u, and à, and [S] elsewhere.
   When at the beginning of a word, it represents [tS]; when at the end, [x].
   In other positions, it represents [k].
g - has several realizations:
   When before e or i, it represents [G] after o, u, and à, and [dZ]
elsewhere.
   When at the beginning of a word, it represents [x]; when at the end, [k].
   In other positions, it represents [g].
cz - represents [Z] after e's and i's.
x - represents [x].
q - represents [q] (or sometimes [G] between vowels].
' - represents [?]

Examples:

skàra [skAr&'] 'stair'
jeptàz [jIptAZ'] 'to throw'
scàz [SAZ'] 'to stand'
votav [vUt&w'] 'vow'
liger [lidZEr'] 'to read'
gozav [gUZ&w'] 'happiness'
voc [vox'] 'voice'
zsicer [ziSEr'] 'to say'
nàmag [nAm&k'] 'letter'
percàz [pIrkAZ'] 'to come'
sezsiz [sIziZ'] 'to feel'

I will be posting more about Fâzerok later on.