Well, I'm a published author. Has anything changed?
Not really. It's sort of like any other momentous moment in your life: wedding, graduation, death of a loved one. You look around and you think, 'the world should look changed'. But it doesn't. It's still the same world.
I know it feels odd to visit assorted web sites and see my book cover there -- MY book cover. Wow. Imagine how the artist must feel, so that every time she turns around she sees her artwork. Wow.
I hope this is the start of many 'oh, look at that' moments.