nose rings are cute... an itty bitty one. However if anyone does try to say anything negative about your piercing... They can go to hell. Tattoos and Piercing are art and is a apart of expression. So, yeah a nose ring or lip ring are cool spots.
You need to get your septum pierced! I think it'll look good! And you won't really have to worry about facial piercings since you could always flip it up and hide it! Oooo! And one in the middle of your top lip! That'll also look amazing with what you already have!