Tips to style this better please

Took some advice from a previous post and switched pants from slim fit to straight fit and switched t shirt for a vest. Added a belt as well. Is this nice? If it isn’t please suggest better alternatives! Also, I’ll probably switch from loafers to boots. Need to find good ones.

Shirt - Pantaloons Vest - H&M Trousers - Rare Rabbit Loafers - Westside.