I'd go for the green 2.3
Just not the black 2.1
IIRC the Madone is the sporty @rse in air model, the Domanes are the more relaxed (remembering that the Sirrus is more like the relaxed Secteur than racy Allez)
Depends what you want from a roadbike
The Madone is the racier one, the Domane more the sportive style (like Allez & Secteur from Specialized, or Synapse and CAAD from Cannondale)
Are you looking for speed, or more comfort over longer distances