I think the Mortale collection is really cute! It's like a chance to unleash your inner rebel/goth teen.
There have been a few comments about some Mortale items having a strong chemical smell, though, probably due to the embossing treatment used to get the skull patterns in the leather. I'm still awaiting my first Mortale piece (the pouch) from the Ideeli sale, so I can't speak from personal experience yet, but chemical smells on treated leather usually fade after airing the bag out.
As for the clutch vs the tote, I think it really depends on what you may find more useful! The clutch (different from the pouch) is definitely still large enough to fit most essentials, I think, since it's the same shape and size as the Metro clutch, but you probably won't have room if you carry way more stuff, and there's no strap too. The tote seems highly usable, but may not be suitable if you're going out for a concert or to a club. What kind of usage are you looking at?