Thank you all so much for your replies!

Miss Nancy: I haven't started with the light settings yet, in these pics I've just used the standard light that comes with an empty scene, but I'll have to work on that soon, that's for sure. 

Mark: Thanks a lot for your excellent explanation! Finally something that is easily to understand.
Well, I tried like you suggested: Highlight with the texture map and Brightness turned down to 50%, Shininess with the bumpmap and Brightness turned down to 30%. Worked wonderful on the shirt, though on the skin - hmm, what do you say?

In that version, I changed the Highlight with the texture map and Brightness turned down to 50%, but I turned the shininess slider down to 2% iso using the bump map (hand and face). Not glossy anymore, but shiny:

And that's the last try. I darkened the colors of the Highlights and used the bump maps with a brightness of 30% (hand and face).

IMO your suggestions all worked very well and now it's just a correct setting of the lights, as Miss Nancy already said.

Which settings would you suggest? Are there probably any finished lights available (yes, I know, I'm a lazy bum.... ;o) but this is just to get a start at that, as I haven't tried anything with the lights right now except then twist and turn them.....somehow.... :blushing:

Thanks,

~Sassy~