The blue looks like denim, the wood has red undertones and the living room and is giving me a fun Americana vibe. I would totally have fun making a themed guesthouse. Stick a couple tin stars on the wall, maybe a painting of a barn or Washington Crossing the Delaware in a nice frame. You'd need to fit stars and stripes in there somewhere but not too loud. Yes, all themes are a little bit cheesy but you don't need to beat anyone over the head with your theme.
The green and wood has more of a cabin vibe, but that particular green feels like the 1980's. It reminds me of my Dad's old lake place: a side of plaid, fishing signs, little carved bears. It's just not my theme. Maybe if you painted the wall something with more pigment to balance the brightness of the green couch and hung botanical prints... I dunno.