Your 20% will be different to each of our 20%. So the OP did the right thing, freedom of choice by 500.

Nah. If it wasn't even worth OPs time to look at them all, it's not worth mine.

I have to disagree. I don't necessarily like all of them, but I found them all interesting in some way. I particularly liked the Brick Breaker one. It would have been a shame if that had been one of the 80% that would not have made it to the page in your scenario.

There really is a cheapness to the designs I can't quite put my finger on. Even if you had told me a human made them, I'd still assume the designs are knockoffs of something better.

That “cheapness” is because the designs are created programmatically in JavaScript, with no image files used.

Many (most?) things are rendered without image files.

I think it's the overall flattened look, use of overly simplistic gradients, bland fonts, animations that feel dead, etc. The lack of details all adds up to feeling cheap. It's not any one of them in particular, nor something I'd be able to advise on. That needs a human designer. It doesn't take much sophistication to notice it, though.

I was interested in seeing how many different ideas Opus could come up with with minimal direction from me. I don’t plan to use any of those clocks myself.

There is no such thing as objective taste or an objective quality bar.

What you like will not be what I like.