I think it looks good, but a picture of the bottom of the bag would help. MGA, would this model have a serial number? I'm thinking no, but can't be certain.
I take back what I said about the "Made in Italy". It's on all Valentino bags (somehow I forgot! I'm not a morning person, can't you tell?)
Your inside red tag has "Made in Italy" written perpendicular to the Valentino Garavani on the right hand side. It's small, but it's there
Hi vesna!
Your bag is authentic. About the zipper pull, old bags specially Maisons may come with riri or ykk zippers. And as LL said, it is old enough to not have a code tag inside the inner pocket. I think your Maison is 2007 (maybe SS-first season). Don't worry about that, my Red Studded Satchel is FW2006 and it doesn't have the code tag either.