First of all, let me thank you for all the responses.
Then let me say, I very rarely visit forums as I usualy find better and unbiased advise suiting my needs anywhere else. The reason for my post was just sheer desperation.
Let me make this clear: I do not seek comfort or want anybody to "like" anything I do in the way of taking pictures. The posted pictures were meant solely for illustrating purpose. So I DO like the look I get with my Canons and to me, that it all that matters to me. If it happens to please somebody else, so be it, but I really don´t care, if it doesn´t. I don´t need anybody to agree with that.
I was hoping, somebody might strive for a similar look and could simply tell me "Dumbo, just do this". I know, that was a long shot, since I do this for quite some time now and I do know, how to drive a camera to give me the look I want (believe it or not). And on land, The Sony gives me a look I do like, so I was frustrated not getting the desired results underwater. However, I also do not claim to be perfect. So since I have exhausted all the means I know to drive a camera without reaching my goal on the Sony, I turned to this forum in the desperate seek for help.
From the responses I got so far, I think, I have found my answers. Which is what I already suspected: I can not get the same look I want (and I get from my Canons) from the Sony.
And maybe, just maybe, I wanted to see, if despite many people touting this Sony as the best thing since sliced bread to come out and just admit, that it might not be that great at all for certain tasks of taking pictures underwater
So for anybody out there who looks for a similar look as I do, please be advised, that in my humble private opinion the Sony might not be the tool to achieve that, so save yourself the money and spend it on some more dives instead.
So I thank everybody again and will refrain from seeking further help in this matter.