If you go for Unity and Biomes, as you wrote in your article, please do support Vegetation Studio Pro. Your work is awesome, can't wait to see it on the store.
Great breakdown of the process and optimization, thanks for sharing.
This article just not only provides great tools for level design. It's also useful vocabulary to express ideas with our team. https://xbeasts.blogspot.com/2018/12/Remove-Wall-Decals.html
Great decals are super important. As you probably know from our countless interviews, you can actually change the whole scene with a nice additional decal. The great thing is that you can get these things at a very affordable price.
Antoine Collignon recently released a pack of 40 PNG Damaged Decals at 2k resolution. The pack includes graffiti, signs, warnings for urban environments. The assets are ready for use from the start. You can also create alpha from the PNG.