Pumeco : google a "French Curve" it's what architects used back in the day zBrush n autodesk sketchbook has one also.

you can do your Art how ever you want. but just cause gimp n ms5 do it differently don't make it wrong.

your confuse new Artist

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The Artist that will fight for decades to conquer their media.
Even if you never know their name ,your know their Art.
Dark Sphere Mage Vengeance