I don't particularly "recommend" my version, Geo,
as I said earlier, the samples I created were meant to show how far one could go, and this thread was to get people to decide whether or not to make that journey.
Personally, I can't see any "texture" on the white areas of the cover. And, Aussie, there is NO coloring (and, hence, no "textured coloring") on the white areas. Usually, such "texture" is caused by moires - the dot patterns of the color grids interacting with the pixel grid of your display, but, as Aussie says, the patterns of color on some comics don't always downsample cleanly and embed a moire into a color area. It's even worse if you plan on PRINTING the image. If you have some time, browse through some back issues of Alter Ego and check out the various scans of comic pages. If you think a monitor pixel grid can cause a moire, think what a half-tone screen can do to reduced color tint pattern on a comic page. You often see horrible moires in the color areas.
On your scan, Geo, on my monitor, I can see fine moires on the water and the smoke from the airplane. If you compare your scan in those areas to Aussie's you see that she very neatly applied a blur ONLY to the flat color areas - protecting the black lines from the blur. She ends up with ZERO moire, flat and accurate color, and still with crisp, sharp blacks.
If anyone's interested in MY take on this cover, see page 95 of my book, Everett Raymond Kinstler: The Artist's Journey through Popular Culture 1942-1962.