How to take this type of picture?

I really like this grunge look. I like the night time with the flash. I just don't know how to take it. I have a canon rebel t3i and an iphone so what settings should I use on those devices. Click the links below for more examples.

https://www.google.com/...3541343330

I would think most point and shoot tossable camera's can do this.
To have your t3i do that you would want to jack up the ISO.
and mess with your white balancing. It shouldnt;' be correct for this effect.

i'm not a professional. And have half a sense of what i'm talking about. Make sure you use a flash and ensure the flash is set for a 4-5 ft.

So you will want to use the flash on a large range, use a large ISO (that's the ameras sensitivity to light and is it increases so does noise so you get a more grungy image and will help to darken the background).

You could also experiment wit whet balance to change the appearance of the image and also you could try and get the camera a little out if focus (you may want to use a small aperture to help with this which will also reduce the amount of light which makes the high noise easier to achieve).

The first link is to a webpage owned by Lolita Raso and there are just too many images on it to tell you how to produce amazing images like hers. It should be enough to say that she shows that she has the skills and experience to shoot just about any subject under any conditions.

No one can tell you how to do that, at least no here.

The other two images are simply photographs taken outdoors at night with a flash without much consideration to composition. ANY camera can do that, even a $100 P&S camera. Nothing special with those snap shots.

I hope you can see the difference between Lolita Rasos' images and the snapshots you linked below her website.