Submitting an image

[SM_BIBOMBE]

Hey, I am in a drawing class, and we are meant to submit images in jpeg for our assignment, and for two assignments now it has been failing when I try to submit, how do I fix it or what is too big or small that I can't submit it. 

[JeffCampbell]

How are you submitting the file? As in, are you using the assignment file submission, attaching from a 3rd party (Google Drive, Microsoft OneDrive, etc), uploading to files...

Knowing the method used might help with suggestions.