Could be Hebrew - gimel, chet, lamed, dalet, vav... don’t know. Is there a word there?
I’m very skeptical about hidden images. The mind sees patterns everywhere. Patterns throw up faces and other images, or even words from time to time. It’s pretty difficult to demonstrate that any particular example is likely deliberate, in my view. Not convinced the black penis was deliberate, for example. But it’s entirely plausible it was removed when someone pointed it out.
Having said that, Watchtower artists probably do insert things in their drawings, which is pretty common among artists generally. In fact I think Watchtower admitted this and cracked down on it in the 1980s. (The famous statement that a GB member would monitor the images) So from another perspective it’s not a big deal either.