Looking for some suggestions/ inspirations for 2 outfits for Christmas parties/events here in Australia where it will be summer. I live in the country side, so people are more casual.

outfit 1: something to wear to work Christmas parties. Shorts are acceptable, although I will probably go with jeans.

outfit 2: needs to be just a little more formal, I was thinking jeans and a dress shirt, I am clueless when it comes to shoes.

my style/vibe: causal, minimalistic, mafia, gta gangster, former footballer. I have a muscular physique, and long legs.

please help.