First Pug Block

I've run into a few bumps so I thought I'd run this first block through the experts here.   It's not done as I don't have a tail and a few design issues:

How do I get the dark brown parts on the top of the face to work right?  I don't think I could cut out the pieces that small and using a dark brown pen doesn't work very well.  There isn't any eyes, nose or mouth pieces either.  Small beads for the eyes?  dark brown DMC embroidery thread for the wrinkles?  Use the brown marker and do everything as pen?  

I'd like to put brown paws on his feet and a brown tail. Draw in the brown coloring instead of the fabric?