Luciana is small for a paladin, barely five-and-a-half feet tall, which causes some people to doubt her profession (an opinion not helped by her other features). Such doubts tend to die off when they see her in action.
When expecting combat, she keeps her long, dark hair tied back and tucked down between her armour and white hooded cloak to make it hard for enemies to grab ahold of and to keep it out of her eyes. She also considers her eyes to be her best feature (at least the best feature of her face); the left one is a pale blue while the right is a brilliant green. While demon-blooded tieflings tend to get very angry at people pointing out the asymetrical feature all such tieflings have, Luciana has grown to like the look. The rest of her face is almost stereotypically-Chelish - thin eyebrows and a narrow jaw as well as translucent, pale skin.
Her demonic features are relatively minor - a pair of small fangs, a pair of tiny horns poking up through her hair and a long, black tail emerging from the base of her spine. The tail is surprisingly thin along its length before flaring out into a spade-shaped head on the end about the size of her palm.
Her armour is predominantly functional; a suit of effective armour that still looks good is too far beyond her budget at this point so she makes do with an unflattering breastplate that gets the job done.
When not expecting combat, her clothing is very different - she's got a killer figure and knows it. Short skirts or minimal shorts to best show off her long legs and sleeveless tops to show the hints of muscle in her shoulders and arms (the muscles themselves aren't noticable unless she's flexing them, but she still has the slightly-broader-than-normal shoulders such strength usually accompanies). She also leaves her hair loose, where it hangs to just above her tailbone.
She's well aware that dressing like this is why she's gotten a lot of unwanted male attention - who tend to pay more attention to how well she fills out her shirt than how developed her arms and legs are, though they tend to realise the latter should things get to the point where they start losing teeth. Regardless of what she's wearing, she always has a symbol of Lymnieris hanging from a thin chain around her neck or on her belt.