Intro GT Sport rims

dont ask me if ppl will find these usefull
i could not find any of these rims side on so i made my own reference using splines in max


Red = Rim Sleves
Light blue, blue, yellew = center peice (light blue is the two outter most circles, blue are teh spokes, and yellow are the bolt holes)

i also attach a picture of the real rim for reference


could I ask you how you did those curvs I circled (see attachment)
I also tried to make a decent reference of a rim this way, but I got stuck on that part... so help would be very much appriciated ;)

oh and of course great job on that rim :)