Hi Erwin,
Judging from the photos, that looks like a pretty good fit. You might want to see if you can either tighten the shoulder straps down a bit more or drop the hip belt down an inch lower on your hips (it should bisect your iliac crest)in order to get the straps to wrap a little more cleanly over you shoulders, but the fit you have looks pretty good.
Also, you might want to tighten down the compression straps in order to prevent the contents of your pack from rolling around loose. This might make it more comfortable too.
Is it unfortable? What in particular seems off to you?