Why don't I look skinny, even though I've lost weight?

Recently, I've decided to lose some weight as it's summer time. I'm really short, only about, at best, five feet and I used to weigh around 120 pounds. After eating healthy and exercise, I'm down to 105 pounds and I've been wondering, why don't I look skinny? I look almost exactly the same as I used to, even though I've lost a good fifteen pounds. I'm not bulimic or obsessed about my appearance, I was just wondering. Can anybody answer my question?