DAZ studio is free and you can get free figures, clothing, poses, etc with it and can easily create your own pose by simply moving the limbs of the 3D character. Clothing will automagically conform with the movement. Rendering is fairly easy, too.

IOW - You can get all that you want for free and can easily create just about whatever you want. (ShareCG as well as Renderosity's freebie section are great places for free items for Daz Studio and Poser. Many Poser items can be used within Daz Studio, too.)

Actually creating a new figure for this task is not necessary and, indeed, would be a terrible waste of time for anyone. Any of the free figures would do, it seems, and licensing issues are not a concern for 2D created products.

See daz3d.com and the free Daz Studio product. Also, check their Freebie section for a nice free figure/character for DS. There are free items at ShareCG that could serve you well, too, like free clothing and the like.