For Future reference, when you ask the question, please give it a title that relates to the question you are about to ask. That way, it is easier for anyone who has the same question to find yours. =)

What Lionlion111 said it completly right. You'll have to re-size the image. Please don't put massive images on the forums. This causes the Forum page to "stretch".

You make a picture and then go to the fanart part and then there will be whiting saying send and then you click that and there will be whiting saying send a new drawing and you click that, but if it is a image you want on then you click the image part and then do the same thing.

If you have paint on your computer then you can resize it there. If it is a render/lineart then I don't know how to resize it with making it paint friendly. For a normal picture click on paint then image, resize/skew then type the same number into both the resize boxes and NOT the skew boxes.

Hope this helps!