Sabby,
The Novarro is clearly too small. Basically your position in the drops is pretty close in back angle to what it should be on the hoods...only closer in. You can't put any power down that way and your comfort will be compromised because you would be cramped.
See your pic below...money shot in profile. Contrast it with a model recreational rider on the hoods. Notice how much more stretched out the rider is...a better target. Basically you want to stretch out back behind the BB and forward on the bike for not only aerodynamics but power.
The Synapse fits better because the bars are farther away as they should be.
At the end of the day it will be your feel that will dictate what you prefer. If you go to 5 fitters, they would each set up you differently. So your position on the bike is partly dictated by how aggressive you want to ride which is a function of temperment and fitness which will also change as you ride more. So there is no destination per se but rather a process of change.
Trainer pics in profile are best versus on the street if you do try a couple more bikes like Roubaix or Tarmac. Best to place your hands on the hoods were you will spend most of your time.
You will learn a little bit more with each bike you ride. My suggestion is you can wait a bit, is ride a couple more bikes...maybe even a 54 to try a bike outside your fit margin for further perspective.
Enjoy the process.