Beach ready (Patreon)

Just finished my beach ready artwork! I am just unsure about why does my Photoshop show diferent colors than the saved file... It was all in RGB, so there shouldn't be any problem there.

I attached a print screen file showing what I mean. The image on the left is my Photoshop file (the original colors) and the image on the right (the more saturated one) is how the file is shown by most programs. Anyone have any clue about why did this weird effect occur?