Welcome to the Do-Itmolds forums.
The colors are probably the least of the issues. Red with a touch of black will get the belly color. Smoke with some silver flake will do the back. The center color looks like clear with a mix of very small glitter in a couple colors.... the colors I cannot determine since I cannot expand or enlarge the picture.
Your biggest issue is the way the bait is likely formatted in the mold. I appears to be a side/side, not the back/belly one would desire. How will you go about getting the red belly/tail color in the mold and then follow up with the clear/smoke split for the center and back unless the mold is single cavity has an end port for injecting or if multi cavity providing an end injection port for each cavity? I know that www.baitmold.com
can make stone molds designed in this fashion but you'll have to work with the company on it.
Injecting the red and cutting it to fit the mold as it is shown in the color plates and then twin inject the other two colors is an option if you can figure out how to assure some venting since the terminal venting will be closed off after re-inserting the red piece and assuming the mold has a single cavity and injection port. What mold do you intend to use for this? Have you got a good picture of it that you can post that shows how the mold is formatted?