Hmmm, off the top of my head, I notice that you don't qualify for ScM at ECL4, its impossible.
Also, HOLY FREAKIN FLAWS BATMAN! Guidelines limit to 2 + 1 trait. I guess if you are running the game, its ok, but that's hella abusive.
Also, you are missing the whole Earth Spell trick. Yea, you are reducing Heighten by a lot with a combo of Easy MM(can you even take this with Heighten?) Incantrix10, and MMSF: Illusion, but you aren't getting the sick CL bump that way. You don't really need Arcane Mastery, if you have Earth Spell, since your CL will be about +10 anyway, from Heightening a spell from 0 up to like, 10 or 11. Get Earth Sense and Earth Spell instead of Arcane Mastery and one other.
Another thing, Arcane Thesis won't work with Heighten Spell. That one is EXPLICITLY stated in Arcane Thesis, so its only reducing Persist and Quicken.
Here's a little trick too, to mess with Quicken. Cast a fully Heightened Minor Image. The next round, when you cast your level 0 Silent Image that emulates the one before it from Residual Metamagic, use a Circlet of Rapid Casting (MIC, 15000g) to quicken it. Since its a 0th level spell, before RMM hits it, it only uses one charge. Then you can cast another fully Heightened Minor Image as your standard action, and the next round, repeat with the Circlet. Circlet has 3 charges, which means you get 3 perfectly abuseable rounds of 2 9th level spells per round. Using the enhancement guidelines in the MIC, you can tack on +6 int to your Circlet for only 36,000g (the price of a +6 int item) bringing the total up to 51,000 for possibly the best wizard item EVAR INVENTED EVAR!
Oh, and I honestly wouldn't do Shadow Miracles if I was you. You might as well turn your character sheet upside down, pull out a giant sharpy, write "I WIN" in big capital letters on the back, and after every 3rd word the DM says, interupt him and scream I WIN! Keep doing this until your DM stops talking, then take the sheet, light it on fire, and watch your friendship blow away with the ashes. Well, except you are the DM, so instead, it'll probably be all the other players who walk off.
PLUS, I'm still not convinced that Shadow Miracles even work. My grounds is based on the fact that AD adds the spell to YOUR spell list, but Shadow Illusion specifically states THE wizard spell list. The two entities are not the same, IMO, but every time I try to point this out, someone jumps on my back and tells me I'm wrong. So, I stopped fighting, and just ban it in my games for balance reasons. Balance reasons don't need to argue RAW, they just get a large foot shoved in the keester. To each their own.