Hi Julie
I agree with PP re the 2-1 transition, and you *could* try elongating the morning nap.
However she may be very OT from the short night and then relatively long A time in the morning-my suggestion would be to put her down earlier for the morning nap but capping it at, say 45 mins, then trying for a longer afternoon nap, and an earlier bedtime. With the aim of eventually dropping that morning nap altogether and having 1 longer nap.
If you can manage a 12 hour day/12 hour night then that's ideal, but obviously not always possible! If she is up as early as 6am, try for more like a 6.30-7pm bedtime. So s'thing like:
A 6am
S 9-9.45
S 1-2.30
S 6.30-7
Obviously this is quite different from your current routine so you'd need to change things gradually, and only you know if it will work for your baby.
You could also try dropping one of those bottles, see if she takes more in the way of solids?
HTH