The best piece of advice to starting your nursery is to start with something you love. It may be a stuffed animal as was our case, or a cherished family heirloom, or maybe even crib bedding you HAVE to have.
Our inspiration was a striped crocheted bunny.
Land of Nod was a great place for some of our pieces. Etsy was where I found the art pieces next to the changing table and the wall decals.
The favorite item in the room would have to be my partner's owl print that sat in his room when he was a baby (below lanterns).
You will never make everyone happy so make it yours. If you start to feel overwhelmed, focus on creating a small detail to occupy yourself until you feel you can tackle the challenge.