Yes, it's very decent. I can't tell you what specific model Marinoni it is (but one of the C&V folks surely will) except that it's Columbus SL tubing and looks to be very well made...should ride like a champ. Couple small notes: judging by the seat height it looks like it might be a little small for you, and if you are growing you'll probably outgrow it, enjoy it while you can and prepare to send it to a new home in good condition (plenty of women are hunting for nice bikes like this in this size range).
That water bottle is jammed in the cage, it's the wrong size and looks uncomfortable: set it free.
I know this is picky, but I've never liked those plastic Zefal pump pegs, and it's bound to ruin the Columbus decal underneath it. I like Zefal pumps just fine, but get any brand pump you like that fits the frame and dump that plastic peg.
If the Bianchi is a larger sized frame, hold it in reserve and maybe you can do a parts swap to that one when it's time to move up (in size that is).