For her age the average awake time (from eyes open to closed, including the feed) is 1 hr 15-20 min. So I would try to extend those first A times but keep the feeds around 3 hourly for now (3.5 hr feed times are more used when transitioning to a 4 hr EASY).
You have a long time between naps in the afternoon though which I imagine is probably leading to ot at bedtime. Normally this age wouldbe on 4 naps a day or so.
After bathtime and the last E we never bothered with a proper A time, usually just a diaper change if anything. How is she at going to sleep for naps?