When it comes to tattoos I have 2 suggestions... make it meaningful and get a good/skilled tattoo artist. I see so many people get tattoos that don't mean shit or just look like shit. Chicks getting dolphin tattoos over their ass and then 5 years later they're like, "I really don't like dolphins I just like visiting seaworld and this tattoo was only $50."
As far as implants go... get implants to fit your body shape. Granted, once women get them they almost always wish they had gotten them a little bigger. I think if you're going to get them you should just do it for you, not for what other people think. But, if you're going to get them, find a good doctor and I'd go with the "gummy bear" implants... they feel more realistic. Outside of that you can get implants which look more like natural breasts or you can go with the high perky ones. Either way, talk it over with your doctor and pick what will make YOU happiest.