Hmm. Don't quite know where to go with this. There's two ways to look at this I think.
TINY, LITTLE AS IN SIZE:
Is Stout's memory 100% accurate? If so, I wish all the concept art he was sharing included the "tiny, frail little creature" inside. (My mind went directly to ID4 too SiL
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The earliest draft of "Hunter" in public circulation (I believe) is dated July 27th, 1985, but the Thomas Brothers sold their Hunter spec script back in January 28th 1985, so there is that 6 month gap. If true, and if this is a reflection of what the Hunter creature looked like possibly in the very first spec script, than the implications are that this is the Predator version that the Thomas Brothers will get back in copyright reclaiming.
TINY, LITTLE AS IN INSIGNIFICANT:
At first glance we may be taking the "tiny" and "little" in the "tiny, frail little creature" too literally, or dramatically. And "tiny" could also mean "insignificant" or a variation of that. Stout could simply mean the very creature we read in the earliest draft we possess:
Quote"The Hunter slowly rolls onto his back, revealing his face. The netted hood of the Hunter's bio-energetic suit, the source of his camouflage protection, is drawn back, exposing a strikingly human-like face. Beneath the smooth, hairless, nearly translucent skin, a delicate network of veins and vessels can be seen, pulsing rapidly with pale green blood. The Hunter's eyes, pink and weak-looking, like an albino, blink, trying to focus in the bright sunlight."
*Edit - Added Little