Why is this happening to my pictures??

Hmm, unless I can actually see the image in question, I can only guess that maybe the file is saved in the wrong format? Maybe your colors aren't set to RGB when you save them. What image-editing software do you use (if any) to format these pictures. All I can tell you is to make sure it is set to RGB color mode and that the images are saved in .jpg/.png format. Hope this little bit helps and good luck!