Is this a good halloween costume for a 14 year old girl ? please answer.?

hello. for halloween ive decided to be a zombie girl thats wearing pajamas. im going to wear black sweatpants that have a little bit of pink of them with holes and stuff on it and a shirt the same way. and my hair is going to be really messed up and kind of covering my face. and im going to wear normal shoes because if i wear slippers i know that im going to fall. and then for my makeup im going to color my face kind of white and purple eyeshadow and my lips are going to be red maybe i dont know yet. so do you think this is a good costume? and what can i add?? help me please thanks !!