Shane,
Per the ECTA rules (relating your co2 to nitrous as they are both similiar high pressure vessels):
The main mount(bottle/clamp holder) and the fastener holding it being safety wired appear to be sufficient, the hose clamps are not sufficient as they don't comply with the rule, and the bottle valve(/regulator) would suffice as it does not need protected per the ECTA rule. Again, these are observations per the rulebook's written word if relating this vessel to that of a nitrous bottle(which as a tech is what I would do).
Personally: I don't have a problem with the hose clamps if they are stainless and you are willing to safety wire them from coming loose (mainly becasue they are only holding a 9oz(1.3lb) bottle). The regulator I'm not so happy about being out there like that (especially in a simple fall) as it is (especially the gauge) a very easy and fragile target that is capable of releasing 1200psi plus of pressure at it's recipient(s).
The whole unit looks (from the pictures) to be the furthest point out on the bike which makes it questionable on it's ability to take a hit on a simple fall over, it's possible it's not as bad as it appears in person but tucking it in somewhere may not require you to get called on it in tech or more importantly to have an issue that hurts yourself or someone else should it take a hit. I do like the fact you have the blow off disc ports horizontal to the ground btw.
Just my thoughts.... but a broader picture of the bike may lead to another member suggesting a better mounting situation (IE, under the tail, to the swingarm itself, inside the fairing, etc, etc).
Todd