Cinematic screenshot

Hey everyone,
i would like to make some good screens for my guild website but i'm not able to find one mod.
I have seen some screenshots with different perspective then ususal minecraft view.
You can check picture what i dropped and could someone please tell me how they made it?
It is rendered in some externals way or it is mod?

Thank you and have a nice day.
(exactly i mean that corners of screens are the corners are inclined to the sides)

 

that looks like the effect of a shader but I'm still clueless on which it is

 

Looks like someone took a screenshot after combining a regular shader with one of the world curvature shaders from here. Not sure how you'd be able to do that but I've been told it's possible to combine shaders by merging the code.
It also could be some feature of replay mod but I'm not too familiar with it so maybe try playing around with that (not 100% sure if they allow it on Wynn though, so if you want to use it, you should find out if it is allowed first).