Nudity is shown on occasion:

A few bath scenes, though no nudity is shown. Just cleavage.

Madlax is seen unwrapping bandages from her chest, and is seen naked, even though she has underwear on. Not graphic.

Madlax is seen throwing her dress to distract some enemies and then is seen punching and shooting army men whilst naked. You see her full body, but it's silhouetted, so nothing is shown.

A woman is seen in bed, implying that she just had sex with a man.

Frequent gun-fighting throughout the series. Very little blood is shown.

Very little. Words like damn and bitch are used

A few scenes of characters drinking wine or other alcoholic drinks

Most fight scenes are intense, though not bloody.

Lots of people are seen getting shot and killed, including some important characters.