A large percentage of her "night" images are not made at night: they are made at TWILIGHT, while the mostly VERY bright lights are on for the Christmas season, and while there is STILL a good deal of light in the sky! The sun is not actually fully set; this is the best time to make may of these types of "night photos"--at twilight time. She is also a professional travel shooter. And these were made in Europe. And edited HARD, too,. I might add. By a VERY skilled processor.
See the shot of her in the penthouse bathtub? That is early twilight, or pre-twilight.
Shoot in raw capture mode, at lower ISO values like 100 to 200, to get the widest possible dynamic range. Do NOT over-expose the highlights too much, if at all. Since you shot in raw (.CR2 mode), you will later, in processing software, "Lift the shadows", and position the mid-tone values, to create these looks.
This kind of shooting is easier with some of the new Nikon and Sony cameras that have 14.5 to 14.7 EV of total scene dynamic range they can handle; this is helpful for lifting realllllllllllly daaaaaaaaark shadows, while protecting the highlights, which you did NOT over-expose. These types of imagesm, 10 years ago, were much more-0difficult to make than they are with a new Sony-sensored camera. On old, 2001 d-slr's with 9-stop DR, we;ve gained almost six full EV ***more*** software correction/shadow lifting potential.
IF YOU ARE NOT a great software photo editor: When shooting in JPEG capture mode, turn on your camera's Highlight Tone Priority if you have it in a Canon, or in a Nikon, use the Auto Dynamic Range Optimizer setting, to High, for your JPEG images.
You can also "cheat" a bit, and use the camera's pop-up flash at 1/2 or 1/5 or 1/8 or 1/16 power in Manual mode, and set the exposure to around 1/15 second to 1/100 or 1/125 second at the fastest, and have the lens opening sert so you get a decent, but NOT over-exposed lights exposure, and let the weak, tiny little "pip..." of flash light up people, thigns in the near foreground area. lens set to Likely f/6.3 or f/7.1 for the background lights.
I forgot to mention too: see how GLORIOUS and BRIGHT those Eurpopean light displays are? And, again....these can be BRIGHT areas, where the exposure is ISO 200 at f/4 at 1/60 or 1/40 second: very far above "night" levels of brightness.
This is not really night photography: this is brightly-lighted, tourist-area lighting, like you might see in Times Square, in Tokyo, places like in las Vegas or Reno, in the big touristy areas in London, or in Europe,etc.