New Book Cover for e-book short story

C'est ce qu'une entreprise en/au(x) United States recherchait pour leur book cover design

I need a cover to release on my debut short, "Valiant." What I envision is a grey cover with the title, my name and a figure of a man in light armor, with no helmet on, kneeling on one knee with a sword in his left hand, pointed down. All of that should be in gold. I don't want too much details, just an outline, but enough that you can distinguish his gear.

I need three separate files with the following specs: the e-book file should be 600x800 pixels in jpeg format. The cover file should be a minimum of 500 pixels wide and a maximum of 1280 pixels tall and jpeg format. They should be saved at 72 dpi for optimal web-viewing and with images displayed in RGB color mode.

I also need the following dimension to upload to Smashwords: 1,600 pixels wide by 2,400 pixels tall (also in jpeg.) Voir plus