For instance, it's impossible to ignore the blatant plagiarism in these early comic books, particularly when it comes to swiping from successful comic strips. Here we have hawkmen, straight out of Flash Gordon.
Despite my rantings, there are interesting fantasy elements here -- the completely impossible castles in the clouds, and the mythological aspect of explaining how thunder and lightning happen.
It's never mentioned what race Buzzlark's people are. It's tempting to say the buzzard-men vs. the hawk-men, but the "buzzard-men" have no birdlike features.
Roland has never heard of honor in combat; although the guard is running up to him unarmed, Roland still shoots him in the face at point blank range with his rifle (it looks like the helmet is melting from it -- heat ray?). At least Planet turns his gun around to use as a clubbing weapon.
At first it seems odd that the "buzzard-men" stripped Planet and Roland down to their underwear before putting them in the "electro tubes." But then, when I think about how often good guys have managed to escape with concealed gadgets, maybe this makes a lot of sense.
Electricity doesn't, technically, dissolve things. I wonder why they aren't just in acid tubes if they wanted to do that.
A sting ray gun is a curious thing. Does the ray somehow project poison into the target?
White apes are 4 Hit Dice. If we applied the large/huge/giant structure to that, then giant white apes would be 16 HD, which is indeed pretty fearsome.
I'm going to spare you the gruesome page of how they kill the giant "white" ape...but you may be able to guess it by the trajectory of the spaceship...
The rayguns seem to allow to wreck at range, which we've seen before. Being able to crumble the ground, even if the ground was thin at that point, should require being able to wreck as a 4th-level superhero, at least. Of course, this could be the Dig power instead (and might make more sense to be).
(Scans courtesy of Comic Book Plus.)