Okay, so first, go to "Newest Deviations" then click "Submit Art" then something will pop up that says "choose file to upload"
once you've done that, it will bring you to your files. click on the picture that you want to submit, if it has anything inappropriate such as swearing, gore, untidy, ect. click yes, then select witch one it is. If not, then click no. Type in a name for it, add a description (optional), add tags (optional), then choose the category it would be in. finally, you can submit it.
Please let me know if that was useful =3