Nicely blended. Very lucky to find an image of a diver in such clear water. One thing I can say I'm not too fond of is the bubble paintbrush you've used. To me, it kinda muddies the image up and makes it look a bit hokey. Cool concept, though.
Yeah, I went for a very bubbly environment, i could probably remove some (and I did remove about half of them at one point) but I don't think it's a huge issue. I don't mind it so much myself and I'm too lazy to make another one atm haha. Thanks for the comment.
Not sure if you mean't that but without the stock or text, it would have seemed like he was underwater but still this is good. The lighting is very nice for this one, and blending I believe is ok aswell (don't see a problem with it). Text is nice, personally fade on a text is unneeded as if you want it there in the first place you shouldn't be trying to hide it with a lower opacity. Only drawback is that it's very plain and bland.
I liked it. I love water sigs, so this looks awesome. I believe it is just a bit bland, maybe lower the opacity of the bubbles and make the clouds a bit more visible? I'm all for the bubble effect, but you emphasized the bubbles too much when the theme of the sig edges more towards the clouds and sky.
I figured you wouldn't care about the bubbles as it was a quick job sig, but just thought I'd comment on it. Like you said, it's not a huge issue, but if there was something to change about it, that's probably it. Perfection is a goal not easily attained, but few can humbly acknowledge true perfection.