Enzo has been with us almost six weeks now, and has become so much more comfortable. He’s tried to get Luca to play a few times– alas, to no avail. He often sidles away from my first leashing attempt, but he stays by the door instead of running to his crate. He accompanied me to Tap & Bottle for some public socialization and did well there. He eagerly jumps on the bed when invited (and sometimes without being invited, but one thing at a time), and enjoys scratches and butt rubs there, though he often still automatically flinches a little at first touch.
Overall he is simply more relaxed, softer looking, more engaged. Though he still has work to do, I can see him being successful in his own home. Enzo is adoptable! I am very proud of him.