Siena is a GREAT work bag - it is compact but fits a laptop like a champ and with 2 compartments one can stay pretty organized (not a supermassive black hole type of situation). I have her in Pebbled and Vacchetta, which are the two heaviest leathers, but it doesn't feel all that heavy (to be fair I have her modified for shoulder carry with longer straps).
I emailed Marco last night but have not heard back. I am debating between the following:
Aphrodite in hot pink nappa with Amethyst Pompei straps/handles and sides
hot pink nappa Theia midi and a an amethyst pompei Polzino cuff
Little Tulipano with an outer bag in amethyst pompei and inner in the hot pink nappa
Little Valerie in Amethyst Pompei
I also wish for something in Flamingo nappa, but not sure if they got it back in stock now that the shop is no more

.