Artist Needed Drawing 10-12 Designs/Clipart

I need few artist to draw designs for me on a regular basis. The artist will need to draw 10-15designs based on the theme assigned to him. For example If I assign a theme say Christmas Ornaments the artist will be responsible for drawing 10-15 designs related to the theme. All the designs he draws should be his original work and not a copy of someone elses work. The work should not infringe upon someone else's copyrights. After the work is complete and paid for the designs will become my copyrights. He will no longer have any rights to the artwork he provides. I can do whatever I wish with them. The artist will not resell the designs to anyone else in any shape of form. The artist will also provide all the designs in 4 different formats namely EPG, JPG , BMP and WMF formats. The 1st theme I need the artist to work on is a Floral Theme. I have attached some samples for the same. Please send me samples of your earlier work, the number of days you will take to complete the project and the price.