Hi there, I actually think your rouitine,awake times and naps look good. I would assume that you are moving towrds a 4hr EASY and ths 2x1.5-2hr naps plus a 45min catnap is appropriate.
I think most babies fight the late afternoon catnap, just to make life easy while we try to cook dinner etc.
Is it possible that she is being overstimulated before the catnap?
some regard the catnap as a freebie and do try for it in a swing etc. I am not sure that this is a great solution on a daily basis, especialy if the mid 2nd nap is not in the crib.
HTH