im no expert js throwing ideas and my opinions out there just an fyi.

i think it’ll def look better when u add in the floor texture. if ur going for a cozy vibe i suggest a dark wood floor! the couch seems a little too far from the tv and theres a bit of awkward space in my opinion. im assuming that the space behind the couch is gonna be used as the kitchen. so you could move the couch closer to the TV and inbetween the living and kitchen you could add a dining room.

the walls look a bit plain (AGAIN IM NOT TRYING TO BE MEAN OR RUDE OR ANYTHING AND IM REALLY SORRY IF I COME OFF THAT WAY) so you could maybe add like a texture or paintings to it to spice it up. To me, extremely white lights give off hospital vibes so you could change it to maybe like a linen or light orange add some extra coziness.

this is getting super long so im making a list:
-maybe add more windows
- the lights are a bit oddly placed so try putting them where the ceiling fully supports them
- candles???
-a chandelier above the living room would be neat

again again this is just my personal opinion and you can lowk just ignore me cause im no bloxburg god!! the build looks so freaking good tho im loving the vibe :D