BEAUTIFUL YARD! I believe in building A Fort Knox for our 4 chickens and would've enclosed your darling little coop INSIDE the run for added predator protection and maybe raised it a couple feet higher off the ground. Bruceha2000 has covered other suggestions for your setup. Nice roof overhanging the coop!
Has the coop ever been completely buried in the NJ winters? Poor back East is getting throttled these last 2 winters!