Ok! I see you re-named the file. That works.

Not sure if "better" but rather than renaming the
file, when about to upload an image, type in that square the title or description of the image. Don't hit any buttons yet!! Drag over the image that goes with the typing. It all drops to the bottom (where they are listed). Once you have done your stash, hit DONE. Still nothing shows up until you finish your post and hit "Post Reply."
We've seen some people name the photo just with numbers (to keep them in an order). Other folks have done like you and give the file a name that make sense. Some people prefer not the have spaces in their file name.
I read recently that using dash ("-") is now better in a file name instead of a space, underscore ("_"), or series of upper and lower case letters ("LucasAndTomAtKCEvent"). Since I heard about the go-ahead for a dash, I've been using it. Even for HTML pages!