If you would like to post full size pictures I recommend opening a photobucket account. it is free.
use
www.photobucket.com
it is free and allows you to post the full size pic.
once you download your photo into photobucket you will see like 4 options under the picture I use the 2 nd one down, copy it
then when you post here click the insert image link, a box will pop up delete anything in the box I think it says http...then paste your photobucket link in that box.
Works great and very easy.