>>36081270I'd do it differently (it's actually one of the pieces of example art I've got for my game ideas) but I don't think the main one should.
I only went with my own version of it (though using similar coloring/design) because even though they're meant to be main series, it would distinguish them from the Game Freak ones.
Not that they'll ever likely be made (even unofficially because I'm more an idea guy and would rather play without knowing everything for having been in on their creation) but still.