A little problem

Been trying to post images of my work for three days now and still not working, just tried to post a random jpg of a tulip downloaded from google which also was a jpg and the same size as my jpg's and it worked without a problem but still can't post my images, all that comes up is error during loading of image, has anyone had similar problems and know what to do? So here is my tulip instead of masterplan and buisness cards...