This is a nice piece of work that certainly shows that you have a vivid style of drawing and a colour method that brings forth the beauty of your work. The design of their character is good and it feels that you've captured the energy and appeal of seduction that they wished you to show. This is shown well in the body language and very well in the way you've proceeded with drawing the expression and facial gesture in the character. Certainly from looking at this you have a good idea of working with the body language of a character and bringing forth the personality of the concept, they feel alive and the simplicity of your design with thick line art and painted look makes for an attractive and animated piece. What it allows is for the body language to shine through without the detail taking over and makes certain areas of attention stand out proudly.