Nadyne, Embroidery Library has a sale on fish related designs today, including fish appearing to jump, for $1.25. Perhaps, you may want to take a look at these.
Hugs, Angel
Some lovely designs here but I think they will be too big. I just may get some anyway as they really are nice!
Thanks!
Perhaps you might take a fish design and try (test) a design using only the outline stitch or stitch it all in a dark color. Resize it to fit the area. I'm sure you have already thought of this, but just trying to help.