I would say "keep it small" as even as big as she's getting, not everyone is going to be able to see her open her presents if there are 20 people there! I'd make it just closest family - grandparents, maybe a couple aunts/uncles/cousins if they regularly visit - people Cadience is used to. A small party with a few people will be a lot easier to manage, and Cadience will have a better time if you are not stressed and trying to manage a mob scene! Just take a lot of pictures, and if Cadience will talk (babble, anyway) on the phone, she can make birthday phone calls!