窺 is a kanji that is not found in surnames.

Mr. Ishizuki likes to climb mountains.

He is interested in geometrical shapes.

He often thinks about problems from a humanitarian perspective.

He is spending a lot of time on experimental research.

That plan is too impractical, it's difficult to implement.

His plan was so unrealistic that no one could believe it.

This painting depicts a surreal landscape.

This design has a unique charm because it is asymmetrical.

He is interested in ichthyological research.