sitting pretty

just another pretty face

Someone who is attractive, but not too distinguished in other areas.

not a pretty sight

Something disappointing, disquieting, disreputable, or otherwise unworthy of admiration.

not just a pretty face

Something that is more useful, versatile, or intrinsically valuable than might be assumed.

pretty penny

Chiefly preceded by a: a considerable amount of money; a high income or price.

pretty pictures

Image supplements in a presentation: graphs, charts, etc.

sitting

An uninterrupted application to anything for a time; the period during which one continues at anything.

sitting duck

An obvious, vulnerable target.