There is a lot Show submissions for the pixel art courses that are at native resolution, making them blurry and/or tiny which in turn makes them hard to see and admire 
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It’d be nice if there was a short video lesson or even a written one added at the start of the pixel art courses that would explain how to save your pixel art in a higher resolution; this can be done in libresprite through the “save copy as” option or the Lospec website.