Not sure if I have an answer to your question, but I did want to say, what a pretty girl. She looks absolutely adorable in that picture.
As far as naps, when my lo was that age, she had two hours between all of her naps, and yes she only slept for 45 minutes. I am still working on extending her awake time, and hoping she gets better at nappinng, but its an ongoing struggle for me right now, since we are battling surgery, and now, high fever. So, I take one step forward and two back.
Sorry, sort of just whined here. I'm sure someone else will give you a response you can work with.
Good luck !!