If you need to resize your photo, here's a tutorial on it How To Resize Photos With Irfanview (free Software)Thank you for the info but it says not to worry about the image being too large but when I tried to upload one directly from my phone it said it was too large I will try from my computer tomorrow!
Did you take all your photos on a camera and transferred it to your mobile? If yes, maybe the file is too big but of you took the photos with your mobile then it should be ok.