Concrete Floor options

Hi

We've an old concrete yard floor we'd like to improve. It currently has cracks (happy to fill) and what looks like the remains of an old surface.

What options do I have to improve it? It's only the yard so not going full bore like starting from scratch but would be nice if it was less grim.

I've had a look on google etc so know I can paint it but also open to more suggestions.

Cheers!