When we see half moon, why is it always the lower half

Even if we see a crescent moon, always the lower circumference is visible. Why we never see this? PS: this image is vertically inverted.

When does DSCOVR see the Moon transit Earth? - Astronomy Stack Exchange

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When we see half moon, why is it always the lower half? - Astronomy Stack Exchange

amateur observing - Why can I see sometimes a horizontal half moon instead of a vertical one? - Astronomy Stack Exchange

Is it possible to completely see the edge of a half moon at night? - Astronomy Stack Exchange

amateur observing - Why can I see sometimes a horizontal half moon instead of a vertical one? - Astronomy Stack Exchange

When we see half moon, why is it always the lower half? - Astronomy Stack Exchange

When we see half moon, why is it always the lower half? - Astronomy Stack Exchange

Is it possible to completely see the edge of a half moon at night? - Astronomy Stack Exchange

amateur observing - Why can I see sometimes a horizontal half moon instead of a vertical one? - Astronomy Stack Exchange

HALF-MOON English meaning - Cambridge Dictionary

See a bright half moon meet up with Jupiter in the night sky

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