Ignoring the fact that this is a template for Constructs, this seems strong for a CR+1 template and I'd probably want to make it CR+2 in my home games.
I will warn you up front that that +2 untyped bonus to Saves against two schools of magic is really juicy for low levels and helps all the more at high levels. But it can be a bit much and I would expect the players to only be able to fail stuff on a Nat1 by the time they're level 11-13 for most things. (I have a Paladin player in my game that uses the optional Angelic Bond as his Paladin's Divine Bond, and in this campaign, it's scarily effective for giving people absurd saves...)
As for the Sin-based abilities, I'd also label them according to the Virtues, so as to be palatable to any goodie-two-shoes in the party (like my party's Paladin). And most of those Sin-based abilities are downright dangerous, especially since they're a free action each round, so there's no penalty to using them. Not to mention that the Wrath-infused ability gives a huge jump to damage output since it applies to every single melee attack that character makes. :/
Since these templates are being applied to player characters, I'd be wary of that scaling DC on the saves: 10 + 1/2 character's level + STR modifier can be deadly, especially if given to a Barbarian. Players can get their ability scores up into the low 30s if they try hard enough, and I shudder to think of a Goblin needing a DC15 Will Save vs Baleful Polymorph at level 1 (10 + 1 + STR of 18, so +4), much less a DC26 at level 16 (10 + 8 + STR of 26, so +8). This is doubly so for things like the Greed- and Gluttony-infused abilities, because if multiple people get them, oh dear for your encounter.
I legitimately like this template now that I've found it, but dang if it isn't strong as hell. It's one that I would not easily entrust to the players since it seems way too strong to give a party for the entire day vs giving it to a few enemies for one encounter.