Oi, that looks like too many naps
How about that:
E: 6.30 am awake and feed
A: 6.30-8
S: 8-9.30 am nap
E: 9.30 am awake and feed
A: 9.30-11
S: 11.00-12.30 pm
E: 12.30 pm awake and feed
A: 12.30 - 2 activity
S: 2-3.30
E: 3.30 pm feed
A: 3.30 - 5
S: 5 pm possibly catnap (?) 45 min
E: 5pm feed
A: 5-6.30
bedtime routine
6.30 bath, PJ's feed
7 pm bed..
that would be a three hour cycle. I would start with that cause her A-time is quite short...
If you want a routine for a four hour cycle, give us a shout, but that would probably be only 3 naps instead of four.
For extending the naps I'd use either w2s, where you stir her gently 20 min or so after she went down for her nap (that could solve the sproblem because she will be in a different kind of sleep after 45 min) or you go in BEFORE she usually wakes up and pop in her dummy or pat her gently, or I would do the transition in the buggy and have have long naps there and then move to bed (which is what we did, but it's not for everyone)
It does look as if she is a bit over tired from the short naps, with longer ones she may sleep better at night. The 5 am waking looks like early waking to me, could be from the overtiredness???
I'd give her a quick feed and then gently pat her back and stay next to her bed until she is back to sleep until 6.30...
Good luck!