Review Request 9k vs 10k

I played white and lost (B+1.5). I would appreciate some comments from a stronger player. Specifically I want to know how I should have handled the lower left and how I could have improved my endgame (which is why I think I lost the game).

Thanks in advance!

Here’s your review:

The theme is connection and disconnection. I hope you enjoy it!

Thanks! The review looks really helpful.