I have the black mc alma and it's gorgeous! I bought it when I was 24 two years ago, and I don't find it too mature-looking for my age. However, when the trouville came out after that I was instantly in love, it's probably next on my wishlist. I've fiddled around with the audra when it came out at an LV boutique, but it's so unpractical and small and without a zipper that I wouldn't buy it. The chains are heavy and make all that clinking noise too...
Anyway, I would go for the trouville first and then the alma!