It is very hard to tell the render from the background and effects.
I know you like to highlight where the light hits... but on this tag its not working as well. The bubbles look out of place. Half the background is light then drastically dark. You should of either lightened the left background or darkened the right. Would have made things pop and look in place.
If you went with the lighter color background I would blur it a bit for separation and then lose the highlights on the render.
Your tags always look good, just little things I nitpick lol.
Keep at it.