It posted, but it is a lot bigger than necessary at 4032x3024 pixels and 2.24 MB.
Here it is resized to 800x600, 321KB and displayed inline with "Full Size" selected.
View attachment 461724
The advantage of resizing smaller, is it takes less time to upload and displaying inline, you don't have to click it to see it.
You can still right click it and view it in a new tab or save it, if you want to.