Beatrice Von Montfort

An image to show properly how she looks like. I don't know who the artist is, and this is just a reference until I can get a proper commission.

Standing on generous 1.75m and with 30 years of age (look talking, in her lore she is 812 years old.) , here you have in front of you not a woman, THE woman.
Long black hair, mauve eyes and the build that could make a Deity blush. Her voice is soothing and almost tempting, but don't let yourself be fooled, she bites...literally!
The features of her face are delicate, skin pale as snow, and a build that some can define as divine. That's all anyone should know about her!
Her body is almost perfect as if it came out of a portrait of a lady of some noble family, and talking of noble family, she is part of one called the Von Montfort family, old lineage whose name is lost in time. Also, looking closely, she seems to be wearing a ring made of bandages...who made it? It doesn't seem to be made for any medical purpose.
She is hard, yes, but mostly with herself, even if she has a golden heart hidden somewhere in her body, thus demonstrating that she has a sweet, gentle personality accompanied by a noble bearing if she is not under the influence of her maker.

She wears a black cape that is elegantly draped over the shoulders, featuring multiple layers of expensive materials. The outermost layer is black with silver buttons adorning the front, giving it a military-inspired look. The inner lining of the cape is red with black lace trim.
She also sports a blouse deep red in color and with voluminous, ruffled sleeves extending from the elbows down. The ruffles are prominent and create a layered effect. The blouse itself is made of fine silk.
To decorate, she wears gloves. They are long and black, reaching above the elbows and adorned with multiple silver buckles along the forearms. The pants are black and slim-fitting, contrasting with the voluminous top. The lower part of the pants features intricate black lace inserts, which match the lace trim on the cape. The lace details have a delicate, floral pattern. The pants are held thanks to a black belt with a large, square silver buckle. It cinches the waist, adding definition to the silhouette.

As a vampire, Beatrice is able to see blood in the body of a victim. Imagine your body going through a scan where all your flesh and organs vanish, but your blood vessels and heart are visible. It is creepy, but also allows her to see the health status of a person before biting them; this makes her a good doctor if only she had the abilities and touch of a doctor, but it also means that she will drink your blood only if you're healthy for her standards. No junk food, it seems.
Beatrice does teleport, poofing in a cloud of smoke when she feels to go immediately, or to run away from unwanted attentions.
Biting is part of her being a vampire, and this is quite explicit to be fair. Beatrice will bite someone to activate her healing powers, to feed, kill or even draw abilities from someone, yes she can do that. Her kin can draw specific abilities written in the DNA of a being, this is called a "bloodcode", and she cannot choose the ability she wants, she will take something or not, might be a debuff or an actual ability. She can get stronger and stronger by just feeding, theorically, but these codes tend to decay slowly over the months or years, it really depends on how strong the host was.
Her weaknesses are the same as any other vampire, so: stake through the heart, fire, beheading and direct sunlight, and she iswary of crucifixes, holy water and garlic, even if hers is more an allergy to garlic to be honest.