Some people paint, sculpt, write poems or take photographs but just because there aren't your hobbies it doesn't mean that you aren't artistic.
If you can appreciate the lines that a coat makes when it hangs off a body or the curves of a pair of trousers, your artistic outlet could be in designing clothes. Add to this knowledge of colours and tones and you could be well equipped for a career in the sector.
Retail is slightly different. Here the focus is on customer service. So wanting to work in retail should essentially be about the desire to help people by passing on your knowledge.
In fashion retail, this knowledge is all about what looks good on whom. You are not creating the clothes, just recommending them based on your customer. Therefore the reason you may want to work in the sector is that you love clothes and the way they can boost a person's appearance which in turn improves their confidence and self esteem. Not everyone knows how to dress well and harness the power of fashion in this way. You have the knowledge so you want to pass it on.
The other thing about retail work is that the hours are irregular. Shops open all day, well in to the evening with large stores, as well as at weekends and on public holidays. While this could be off-putting you could argue that this is part of your motivation. You could say that you're not interested in a job where you work 9-5 Monday to Friday. You want to keep varied hours and meet lots of different people.