You're welcome. I suggested changing them to the Bronze Colossus variant because in their current form their skin isn't working right. I recommend keeping the errorlog clean, I've always found it extremely useful in my own modding. If you let it get overrun though it's useless and you still have to fix it someday.
These are the fixes I've got so far.
In material_template_void, change the five instances of IEMS_HARD to ITEMS_HARD. In the same file and inorganic_lethal change
[CE_FEEL_EMOTION:Distress
to
[CE_FEEL_EMOTION:EMOTION:Distress
You need the word EMOTION twice. It's a bit strange. In item_cannonw you need to change the skill on [RANGED:CANNON:CBALL]. CANNON isn't a skill and the skills are hardcoded. CROSSBOW seems like a good replacement. The same situation is in item_tank on the TANKTURRET weapon. [RANGED:TANKTURRET:TROUND] TANKTURRET in the middle needs to be a different skill. The skills you can use are listed here.
http://dwarffortresswiki.org/index.php/DF2014:Skill_tokenAlso in item_tank, you should get rid of [BLOCKCHANCE:99] in [ITEM_ARMOR:ITEM_ARMOR_TANK]. Blockchance only applies to shields, so it just generates errors there.
You show a lot of talent for somebody just starting. Your work implies a good grasp of the raws, especially advanced concepts like inorganic syndromes. Also, good form isolating your mod to its own files. That will make it merge easily with other mods.
*Seeing your new edit, changing the creature to Void entirely will convert the organs as well.