I'm kinda surprised most Japanese transformation artists always draw transformation sequences like these from left to right, just like western artists, even if they draw manga from right to left.
It sounds interesting for me, but I think there is not the only reason why we do so.
I always decide the direction by which matches the theme that I draw. In short, it's by an atmosphere. :)
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I'm kinda surprised most Japanese transformation artists always draw transformation sequences like these from left to right, just like western artists, even if they draw manga from right to left.