sOME FEEDBack can be nice - GC Forums
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The vertical format reads really good. I like the characters you drew, but it's kinda jarring when you use the different backgrounds and stuff. My advice would maybe be to practice drawing your own environments. It will most likely seem really tough at first, but they usually can be broken down into simple shapes. If you use photoshop or something similar, you can add a lot of depth to environments and background by setting stuff up on multiple layers.