I see the sheer quantity of assets and wonder how it was made. Did you take photographs of storefronts, or do photo-bash/touch-ups from Google Streetview? What about foliage like the wheat?
This is awesome.
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A mixture of what you said and some royalty free textures that I then touched up in photoshop in an attempt to make them fit in with each other, models were made with photo textures and substance 3d painter, the wheat in specific was something I drew from scratch in aseprite, thank you for your inquiry.