Models should worry about their looks so much. For one, all the models in Renaissance paintings wore little make up, had to pose for hours and were dead tired. You should just show up & be confident! You are as you are, each day is different, enjoy the moment. Be good, do well!
You're sets are always so simple and bright that it's a pleasure to take a long look at them. You're poses are also well-found, so you deserve that love. Hope the next set will be without makeup, it's the best way to show us that you're a true beauty ;-).
You're absolutely stunning. Everyone is insecure from time to time, but too few people actually jump out into the fray. (Potentially bad phrasing in this entire post, but I'm just gonna roll with it.) Regardless, keep your head up and a smile on that pretty face.