Celebrity eclipse

[MelB]

Hi. I'm considering a cruise for Dec 31st departure from Miami. I've never been on a cruise before. I'm traveling with a friend so it's just 2 of us (single ladies in our 30's). I don't need a "party" but would like some fun, good shows, great food and drinks and great spa. I don't care "who" is on the ship but hope there are some in our age group and not all "couples". I'm also interested in the Norwegian epic because it is also a new ship and seems to have good entertainment. I'm a bit turned off by the size if it though. Any advice?? We are booking on Wednesday. Thanks for your help!!