I have a custom press from Bavarian - 1 Flat and 1 3-D! I so love my press! Here's a quick pic of a small El Diablo set I made:
You can see here how the back of the Skull is curved...this takes some practice as Ali said.
Sorry, I don't have a pic of the Flat Skull at the moment; I do have an example out in my garden though! It was my first try, and the bead release broke underneath the bead. Needless to say, this one became a plant stake!
I can try and take a pic if you'd like...
Hope you find what works out for you! And congrats on your big order!
De