Below is a picture essay of some of the best and worst depictions of today's saint. Personally, I prefer the penitent Magdalene to be modestly dressed with no allusions to her alleged past misdeeds. Pentitence through prayerful study would seem to be most fitting for someone who spent so much of her time at the feet of Christ. Any other "penitence of the body" stuff ought to be totally private and depicting it in art makes us little better than voyeurs. If I'm trying to say anything at all with this picture essay it is that the centuries of objectification of this particular woman detract from the real power of her story.
Below is one of my favourites: Roger van der Weyden's Magdalene reading
good posts see here and here