Hey! I was on the Paradise twice this this year (April and June), both times for weddings!!
OK, I will be very honest about one thing, the theater where they both wedding were held was very... uh... gold? And, yes, the decor in the clubs (and the ship in general) is just hideous. Bu if you can get past that it's a nice ship! My suggestion is to look at pictures and choose colors that won't clash with the decor of the ship and the theater. Pastels will look a little strange in that theater! Both weddings picked a shade of brown for the bridesmaids dresses and it looked fantastic.
Also both of the brides hired an outside photographer to shoot their weddings. Both wanted pictures BEFORE the ceremony back at the hotel (the portraits and getting ready) since I think a lot of the family and bridal party weren't sailing. If I recall correctly, there isn't that much time between the ceremony, the reception, and the time the non-sailing guests have to leave the ship so if you have a lot of non-sailing family members you want in the portraits you might consider hiring someone for an hour or two before the ceremony, maybe to take those family pics in the port before you board? But if everyone is sailing I don't think this would be a problem. Although one photographer ended up sailing with the group and took pictures of all of the dinners (a ton during the formal dinner) and they did a trash the dress around the boat one day that was kind of neat.
The ship itself is older and smaller. But I got very lucky on the Craps table and enjoyed the comedians they had on board. Oh! Be sure to make it to the Marriage Game and try to get the Newly Wed spot. It's pretty fun for you and your guests.
If you have any questions I did play a roll in both weddings and got to see some of the inner workings of Paradise Welcome Aboard weddings so feel free to ask!