I suggest optimizing the image that you were trying to upload. As a suggestion, though, I recommend EZGIF, since I use it to optimize large image files, such as art that has way too many kilobytes.
Toyhouse doesn’t want to upload this photo because the image is “greater than 4000 kilobytes” but I uploaded another picture of the same size not too long ago and it didn’t give me that message. Is there anyway to fix it?