I hate using the color green and I hate drawing foliage. Last time I attempted drawing those things it ended up looking like shiiiiiiit
Getting better though. Also I tried painting with both Photoshop and SAI for this, and I absolutely love the result. Used Photoshop for the textured brushes, and SAI for the details (with the handy stabilizer). A bit of a pain switching back and forth though.
Unlike the usual forest city artworks where people build houses spiraling around trees, I had this forest city made of artificially elevated lands, with a deep forest underneath it. Some trees are too tall and huge that they have to leave holes to let those trees pass through. And I have no idea how the trees underneath perform photosynthesis.
Tools: SAI, Photoshop.