The dark blue background with the blue-ish blended photo makes this eye catching because the bright and lighter flowers and elements really stand out. Like the fun water bubble scatter and the sequin scatter adds an additional bubble feel. My favorite is still the blendedbackground with blended photo- really creates a sense an awesome underwater feel. Well done!
I love how you put the bubbles around the underwater photo - they're a perfect touch. I also like how you used the chevrons and flowers to frame all three of your pictures. A real eye-catcher!