For some reason every Ruby rom I tried didnt work, but after many downloading and deleting's, I finally got one to work (I can't find the AXVE one).
Anyways, I didn't go into much observation, so this is what I'll say:
Music - The Intro music (Route 30) was terrible. I can constantly hear a C note beeping on and on, and whoever composed that midi you have doesn't know how to correctly make chords in the correct key. The song is in the key of G, but the midi you have has notes that make wrong chords that don't correspond correctly. Also I kinda don't like how the New Bark music is in a different key than the original. And the Pokemon Center music is crap. It sounds like a 4-track 8-bit theme with GBA instruments.
Also for some reason when you start in your room, you can hear the PokeMart music.
Graphics - Amazing. When playing it, it's hard to believe that it's a hack of Ruby.
Glitches/Bugs - You said you don't have any, but there are. One of the houses in New Bark Town has a TV saying that Latios is flying around Hoenn.
Anyways I have a few questions: Since the PokeNav (Gear?) map shows Johto only, what are you going to do for Kanto areas?