Im gonna talk a bit about how I do my terrain:
Most of the hotline miami parts take place in magical realms floating in the sky.
I didn't want to do it with a tile grid because I always loved to be able to do terrain more freely.
At the same time you still can't really do that with a simple sprite, you can angle it sure, but if you scale it it is gonna look stretched, and if you stack tiles on top of eachother to quickly make terrain shapes it'll also be ugly since you'll still see their borders stacking onto eachother (tho that effect can look cool too generally it looks a bit messy)
There's a way to fix all that! I do my floors and walls tiles like that: 2 sprite layers, both 9 sliced sprites (top layer is just a mask for a looping texture, bottom layer is borders) which looks pretty cool in any shape and (VERY) quickly allows me to do any shape of terrain I want.
Here's how it looks with that technique and.. E-EWW.. *PUKES* without:
Also one cool thing where I was just like "oh shit I can do this too cool" after toying with these tiles is that you can not only rescale them UP nicely but DOWN too so you can do little cute "WATCH YOUR FCKIN STEP.." paths like that even tho the sprite is absolutely not that small in size. It is not perfect but it saves so much time and it is very fun to build.