A nice story, great for a first try!
I like the fact that it's not just about the haircut, but you've set the whole scene in the Planet, and then Lois's fears and worries that 'come true', and Clark's reaction... You've got everything, and it's pretty good too.
Mind if I point out a typo?
she had done more then just that
Should be 'than'.
Keep up the good work!
See ya,
AnnaBtG.