Here’s a quick attempt at something maybe a little dieselpunk-ish
My Korean War (maybe WWII but more likely Korean) US uniform fits the era/feel closely, in my opinion.
Then my pith helmet: To me it feels like pith helmets are usually more steampunk, but, the date inside my US Marines pith helm is 1946. Soo that fits into the era of dieselpunk more.
Either way hi I’m Laszlo I like making cool outfits