Why do people who read manga keep making these dumb statements? Mate, that's PERSPECTIVE. That's Art 101.
That's like saying look at how giant that person that is compared to the Moon
Shit closer to you looks bigger than shit in the back. Take a basic art class.
Sigh...
Those hills around skull castle reach from 50% to 75% of the size of castle. And they make even the Thousand Sunny look like an ant.
Which is made even more clear when we see the close up of the actual Island. In here the camera angle would make the skull castle look bigger than it actually is compared to the hills around it, especially the ones in the back.
You say this camera angle makes things that are closer to the camera, seem bigger? lets assume you're right Professor Art 101. Based on your logic, the impact here that dwarfs the hills surrounding the Skull Castle is actually much bigger than being showcased here, as the hills appear before it, making it the hills seem bigger than they are.
Now from the close up we already got to see the true size of those hills compared to the ships of the alliance. An explosion that's not only 3-4 of those hills combined in width, but also 2-3 times bigger than them in length.. is still insane, for no Haki usage lol.
So great job, you made a post trying to negate my point, but only ended up making the feat by Marco seem even more impressive. Hmm.. maybe you might be a secret Marco fanboy.
PS: If you think I didn't take into account camera angle in my statement, you should review the post again. On panel, the explosion is drawn even higher than the Skull Castle. But because of the camera angle I said "nearly the same size of the skull castle". Meaning it's not as big as the skull castle, but near it's length.
Yea nearly missed it too with all those similarly colored hills.
Waiting on that Dragon vs Phoenix sky battle, hope Oda doesn't miss that chance.