Z.A.
First b-days are all about the family. They're really more of the "Worlds Second and Best Mother's Day Ever"...the First Mother's Day, being of course, the day you got to meet her & welcome her to the world. So pick a place that's comfy for you and your loved ones. A brunch at your house, or a bbq, or a potluck...whatever kind of event you enjoy most with the people you care about most.
Have a cake, a candle, a camera, and a good time. You've made it through the first year! Congrats!!
Now, if you're NOT making this about your daughter, and you're making it about your friends' children and any nieces and nephews...then look at the age range of THOSE children and set something up appropriate. But if it's about Alexa...just have fun and relax. And make sure you grab a photo of "Frosting Baby Face"!
:) Z.