Had you been riding anything before you got this bike a few days ago? If not, I say give it a little more time before taking drastic action. If the position is new, it will take your body some time to get used to. Fit is entirely dependent on your body shape, but your setup doesn't look terribly aggressive (assuming it fits). Every spring I think I forgot how torturous my road bike is (the racy one), but it just takes me a few rides to get my flexibility and core back in shape. I would ride it for a week or two and see what happens.

That said, if anything hurts, particularly in the, well, important areas which contact the saddle, cease and desist.

In terms of saddles, I love the looks of the San Marco Regals. They come in other colors, but I think the black would look very classic on that bike: