As you can see in the picture at right I had some real problems with the colour bleeding out of the areas that I wanted it in. Luckily, the inks are heat set-able, so I ironed the heck out of it to dry the fabric and get things back under control. Once I started working nearly completely dry brush on dry fabric there was much more control. The whole piece is only about 6" X 12" in size, so there isn't a whole lot of room for dye traveling.
Keep an unloaded paintbrush and water on hand for blending. If the colours have not been heat set yet, you can reasonably control the travel and blend with a clean, stiff, damp brush.
The piece at left is what I have now. I worked the darks in while the fabric was so hot it was almost burning my fingers, but it gave me some really nice, crisp lines.
The next step for this piece is the stitching. I'll treat the thread much like I would a marker at this stage, and tighten up all the details now, in the quilting process. Wish me luck, I'll be holding my breath the whole time.
Oh, and I feel like I should apologize to my Mom for the snakes - SORRY MOM!