Groom's Fashion for a casual wedding

Hi! I need fashion advice from you all. My partner has somewhat "unique" taste regarding clothes, which I love about him. We are having a super casual wedding in a park this summer and are not requiring specific colors from our wedding party. My partner is on the hunt for nice thrifted clothing for his outfit, and I got my shoes and dress from Poshmark a few months ago ($30 wedding dress for the win!) He said he wants a sage green shirt and forest green bowtie! He sent me a picture of a shirt he likes but is at a loss for what color pants, dress shoes, and suspenders to go with this shirt/tie combo. Does anyone have recommendations? We are thrifting online only right now (#stayhome) so any online shop recommendations besides Poshmark & Mercari would be greatly appreciated!



I will be wearing a white dress and white shoes (pictured) with sunflowers in my hair. My partner doesn't want a jacket or a vest because it will be hot in August; only a shirt, bowtie, pants, and suspenders. He also said no to black or white. I want us to AT LEAST not clash lol, so what colors should I help him look for?
Thank you!!