Portal to the Ocean
This one really impressed me. I just made a quick selection, taking about 15 seconds, with the Lasso tool freehand, then triggered Content-Aware Fill. This is the (untweaked) result, after it processed for perhaps 3 seconds.
It's critical to make your selection as tight as you reasonably can. If, for example, I'd made a loose selection to the right of myself in the pic above (as you're looking at it), then there would have been some sea copied into the space where I stood, creating an odd appearance.
Portal to the Ocean
This one really impressed me. I just made a quick selection, taking about 15 seconds, with the Lasso tool freehand, then triggered Content-Aware Fill. This is the (untweaked) result, after it processed for perhaps 3 seconds.
It's critical to make your selection as tight as you reasonably can. If, for example, I'd made a loose selection to the right of myself in the pic above (as you're looking at it), then there would have been some sea copied into the space where I stood, creating an odd appearance.