I could not care how much time spent. it takes thousands of man hours to come up with things like the world of Harry Potter but that doesn't make it realistic.
Writing the story sure, doesn't take that much time to come up with the idea.
the bottom alien has tentacles for legs. not going to happen no matter what fan fiction the guy wrote. at that weight the creature can't stand without a support structure,.. or bones. it's a rather simple statics equation to prove it to be non-viable.
I didn't realize you had x-ray vision that works on photographs. /s
On the other hand, isn't it possible you would think giraffes were impossible too?
the creature behind it is flying but fails the basics of aerodynamics. those "wings" are appropriate for a sea creature not a bird-like creature.
Or perhaps an ecosystem with a
very dense form of air.
and 4 retractable eyes and tripod legs a digging nose but than carnivore teeth. c'mon. it like they're not even trying to come up with environmentally justified designs.
I think it's interesting that ideas about dinosaurs have changed over time.
Like the T-rex has been argued to be either a scavenger based on their snout (for sniffing out dead carcasses) and short arms, or mostly a predator based on whether or not the teeth really are strong enough to crush bone for scavenging or not.