try it in english:
I wanna use your photo for drawing as an illustration of a book I'm writing and publishing by my one (that's to say without any editorial help and sponsoring, only with the future nice bank who will allowed us to print thanks to the money they will "give")
the only thing I could do in exchange is to write your name as the photographer who gave me the idea to draw this paint... and to give you for internet the image of the drawing, in .jpg the most quality possible (but not so much that yours !!!)
to write to me : lee--anne(at)wanadoo.fr
in France