Hi!
Here are the links for average amounts of sleep & A times at this age ..there are quite wide parameters though!
Typical Amounts of Day and Night SleepAverage A times- BOOKMARK ME! As you see, the amounts and length of naps can vary a lot at this age, but one shorter and one longer nap is a common pattern for a 10.5month old. The act timings are really up to you and your baby.
I have also heard of people doing a 2.5;3;4 routine at this age (2.5 hrs first A time, 3hrs 2nd A time and 4hrs A time to bed) which is what your routine looks like and works well for some.
Is the routine you posted what your DD is doing, or a routine that you are trying to get her to do?