I think your major problem is the construction of faces. They have no depth and therefor look... unreal.. or how can I put this better? *think* They just don't look right.
You have a good grip at body structure, but what can really help you, as well as things belonging to face-structure, are books (with pictures of course) about the human body and face. When you have studied the proportions it will become easier for you to draw them how you like. You should also try to find manuals on the Internet (or in bookstores) about how you can draw proportions more easily.
I won't say that I am good at that, I am still studying myself and I know that I still have to learn a lot, but I know what to look for, and that is always good.
I have some drawings that were designed after proportional learning, and it really helps =)

If you want to know more, you can just email me =) (I am from Germany as well, btw. )Hum...1) I know that I'm not good at faces - but I guess the bigger problem is that I can't do shading on faces.2) I don't think the faces in this gallery are bad.3) As a manga-reader I don't think faces must look real to look good.Anyway, you're right. You comment has brought a book about drawing portraits to the top of my "to get"-list.On the other hand, I don't think I'm good at bodies. Everything beyond a simple standing-pose is beyond me.Thanks for your comment! Hearing "Wow, that's great" may be more fun, but THIS kind is more useful!

Hi! Nice art! I'm a big Elfquest Fan too! Perhaps it would help you taking an art figure class! Helped me very much for anatomy. Shadow and sweet water!Thanks fot the advice!
Right now I've got too much other stuff on my timetable... but I'll HAVE to attend drawing *g*

Hi Anke, do you have your pics also on elfenwelt.de?

Damn haven't seen everthing yet have to go do i liked what i have seen so far

Hey! THanks so much for dropping by my gallery. I would love to be in your tour. It would be an honour! I would also just love to say that you mini elves are just too cute! *runs off with one* THanks again!

yay another elfquest fan I sorta have a request, could you draw one of redlance, that would be so cool to see Keep up the good work Done ^_^ http://elfwood.lysator.liu.se/fanq/a/w/awehner2/portraits03_11_1.gif.html

Ayooaah!
Hello fellow ElfQuester!!! I love them too!!!^__^
Wendy is such an insperation for me, it's not even funny. I have drawn off those comics for YEARS!! It's nice to meet a fellow artist as talented as you, be into such wonderful things!!!
I'll be back again. ^__~

Hey there! you are ousome. I just want to say thank you for giving me so much inspirataion in you artworkThank you
Would have been nice if you left a link, so that I could have a look at your stuff, too.

Are you a boy or a girl? BTW, you have some really original and cool pics here! ^^ Good luck with your art!

hey I from Germany too... nice pic by the way!!