Using enclitics makes the sentence more natural.

The whole area of this park is covered with flowers.

Mokuzen-san is always a quiet and calm person.

His success is right before his eyes.

He left the room in silence.

This terminal block is used for electrical wiring connections.

He stood in front of the lectern and began his speech.

Taiyo is my best friend.

The architrave of this building is adorned with beautiful carvings.

She put a vase on the windowsill.