how should I finish this cut

[boreal vigil]

I cut some table legs using a saw I have sanded it down as Google told me how can I make it look nice in top
Also is there anything else I need to do before attaching it back onto the table?

[smoky crag]

Cpuld you add some specifics on what you need help with? Not sure the context, they seem fine?

@boreal vigil