When I created my first website (before signing on any families) I asked some family and friends to borrow photos of their young children. Just a handful of kids in non-descript backgrounds (outside etc). It filled in my website making it look less "I am empty". I never claimed they were my daycare kids or anything just had them up for viewing when my ads directed parents to my website.

Again, my website listed a daily schedule, sample menu and everything as if i was currently running the daycare. Have everything planned out. Present yourself at your best.

good luck!!