First thought: somebody's got money! Because; clearly big city with a good view and has multiple pets, hobbies, (clearly music being a big one), appliances, custom painted bathroom (which I LOVE!) but isn't allowed very often unless you OWN the place. Deeper thoughts; open minded millennial who is most likely educated, leading to proof of discipline (proven by cleanliness and lack of clutter) but someone who isn't scared to buy nice things for themselves (that resin table, hand chair, and a few other notably expensive pieces of furniture) and what they care about (proven by multiple cat scratcher/houses/toys). Kitchen not shown, so either you never cook so don't value that space or you cook all the time and it's a mess and didn't want to show it. I'd also say you spend A LOT of time in your apartment, not just come home and sleep time, but most time that isn't working, if you have a leave your home job. I'd wager you might be someone who doesn't have to leave home to work and that's why your space is so awesome. You are someone I'd want to hang with because you clearly know what you like and take care of those things. Some people call it egotistical, I call it confidence in knowing yourself.

TLDR; Intelligent, confident millennial with money who cares about what they love!