what shloud i sketch out for my art project? i will be painting it on a window?

[Rene]

well i need a rough sketch of a painting done by a master artist, that i will eventually paint onto a window, preferably no people in this painting, unless they have their back to you or somthing in other words, nothing outragesly hard that cant be re-created like the mona lisa haha. any help would be aprecieated thankss ;DD