OK, hopefully this step by step guide will help you achieve a fantastic set of Fashion Illustrations that showcase your garment ideas.
Select 2 of your photos from the figure to work with. These should be dramatic poses that you feel will work well with your particular garment/accessory.
Elongate the figures in your selected photos using the Transform Scale Tool in PhotoShop (on the Edit Menu). See example above (I've also cropped and enhanced the image a little).
Then create a linear template from your adjusted photo, try to just concentrate on body silhouette and ignore bulky clothing. Use the lightbox if it helps.
Create 2 templates of alternate designs for your garment/accessory that illustrate the shape of your design proposals. Make sure your garment templates fit to scale with your figure template.
Work with your templates to create a series of illustrations of your garment/accessory design in the style of Barton Hargreaves and 2 other illustrators (this should result in 6 illustrations in total). Find other illustrators through net research or select from www.art-dept.com Try to use the same media as the illustrator whose style you are adopting, so this may mean working by hand, digitally or employing a combined technique.
Filled Silhouette Illustration
You should also get some reproductions of work by each of the 3 illustrators and complete some analytical research for each one of them (2 pages for each illustrator).