I will have to agree with Willemd. Have you tried sandwhiching the images in layers or, just brightening up the image itself? You have a great idea here (good thinking) but, it seems it just needs a little tweaking. Nice effort. Mark J
I see you asked for critical comments : I like the colors you have on the top right of the bubble, but the rest of the image is just too dark for me. When I think of a bubble it is always the bright blue of the total, supplemented with the different colors flowing through it, which come to mind. I would try with some brighter lights and surroundings. Willem