If anyone ever doubts that validity of changing their character design, think about this. It took roughly 2 or so years before Bugs Bunny even became close to how we know him nowadays, and a further 7 more years for him to have his current familiar body shape
It took from 1938 to 1948 until we had Bugs as we know him as he is today.
In other words, changing your O.C.’s design (that is if you want to) is perfectly natural and you shouldn’t be worried about it!
This is why my characters keep evolving! A design never is set in stone, you can make any changes you want until the character feels -right-!