Create Simple 1D Images / eBook Covers

I am looking for someone to create 2, **Extremely Professional* looking, 1D (one dimensional) report covers for me and I need all of them to have a different look. Please read all of the following and let me know if you totally understand. image needs to be about a family cycling together with helmelts or something like that #1- I need the finished covers as a vertical rectangle-shaped, not square image,. #2- I need you to give me EACH COVER in two different sizes; a- One needs to be 960 X 1280 pixels and b- The other needs to be 600 X 800 AND under 127KB in file size. Both must be saved as JPG images. #2- All images MUST be 100% royalty free (I need to know exactly WHERE you will get the images from to verify that they are)