Exposure Compensation:
This is just a way to tweak how bright or dark your photo turns out. Your camera tries to find the “perfect” exposure, but it doesn’t always get it right. If your photo’s too dark or too bright, you can use exposure compensation to fix it.
Minus (-) makes it darker.
Plus (+) makes it brighter.

Exposure Bracketing:
This is when you take several shots of the same thing, but with different brightness levels. The idea is to make sure one of them is perfect. It’s useful if you’re in tricky lighting, like a scene with both bright lights and dark shadows.
For example, you might take:
One that’s a bit brighter.
One regular shot.
One that’s a bit darker.

HDR photos:
How to use it:

HDR modes can usually be found in the settings of most cameras, in which it gives you a variety of options to choose and tweak to how you want your photographs to be.

On the camera screen you are also able to choose High speed continuous photos, this makes it so the 3 photos needed for HDR (low exposure, medium exposure, high exposure) are taken in a fraction of a second, this makes it so if there is any movement in the camera, there wont be any differences in the photos besides how dark or light they are. This will overall make it alot easier to obtain the HDR photo you are looking for as you wont need a tripod or anything to stabilise the camera.

HDR is a trick where you combine multiple shots with different exposures to get a photo with more detail in both the bright and dark areas. It’s like using the best parts of each shot to make the final one look more interesting.
So, if you’re taking a picture of a sunset or something with a lot of contrast, HDR can help you show both the sky and the shadows in detail.
My own photos:




These are the before and after of my photos regarding HDR photos in which there doesn’t seem to be much of a difference but it is quite hard to replicate the HDR without taking multiple photos of the same shot but with different exposure, so using photoshop doesn’t correlate with the same type of quality if i were to do it properly.