This is what I always get
We are sorry, but your design ‘blank’ has been rejected and will not post to our Voting section for the following reason:
Format: Your design was not formatted properly for submission. Examples: the image is not in RGB. The images are distorted or out of proportion.
but I has them in the right dimensions and the rite dpi what I’m I doing wrong and if I switch different software besides photoshop would my results be better