Just a simple suggestion that would allow more customisation and would probably motivate people more to buy TP.
Let male characters be able to use female hairstyles and let female characters be able to wear male hairstyles, pretty much.
Since males/females seem to have a very similar head structure I do believe this could be done easily.
This should be done for both regular hairstyles and premium hairstyles.
Would lead to cool/original/funky results.