Based on boiling 7.20 gallonsliters at 1.048 for 90 minutes, this will decrease your wort by 1.50 gallonsliters, bringing your after boil OG to 1.058. You wanted an OG of 1.060. It looks like it will be under.
Hops is there but not strong, very pleasent. The cara-gold brings a sweet caramel after-taste that is bold but smooth. Overall very good for a marzen in my opinion, though I haven't had many. Easy drinking, friends and family love it!