I presume that nothing appeared which suggests that you didn't <save>. It the picture is the wrong size or format, the rest of the post goes ahead.
Thank you much. You were right I had not saved before uploading.
Did you make the pictures smaller?
When you loaded them did you press save and then go onto the next loading.
Hope this helps
Thank you for telling me. The problem was not saving before uploading.
I have now uploaded several projects that I made for my new grandson.