Why is timeskip Norman drawn so grown up? - A Wild TPN Theorist appears

Why is timeskip Norman drawn so grown up? I have seen this question floating around a lot, and I know there is plenty of speculation going on about it, but I thought I would share my two cents as

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Why is timeskip Norman drawn so grown up? - A Wild TPN Theorist appears

Why is timeskip Norman drawn so grown up? - A Wild TPN Theorist appears

Timeskip Norman by Deerloaf on DeviantArt