Ricardo,
Congratulations on the newest family member! She looks like a sister to my Europa 6 string with 5A quilt maple top. However, it looks like your finish has some amber color in it, making it look deeper, or antique so to speak. The wood on the back looks like the standard Mahogany. It looks darker I think because of the amber tint. However, the grain pattern is mahogany, I am almost certain of it. You have a beautiful family. Do you think you will ever add a fretless brother, or a 5 string cousin?
Kris