You could practice writing similes and integrating idioms into some places, if preferred.
There was an exercise we used to do in Creative Writing where the teacher would put up a picture on the projector screen of a location, like a cabin in the woods, or a marketplace, and we would write out a scene while incorporating the five senses into it.
"The woods were a little musty, and Aril observed particles of dust as they floated down the citrine sunbeams, like little boats cascading in slow motion down a titanic waterfall. It was just cold enough to make the hairs on the back of his neck stand up, and dull whatever he could smell of the place, but there was still that faint scent of an unnatural... thing. Something ancient and rotting, and not quite chemical although he almost tasted ammonia in the assaulting concoction. It was a substance hidden within the magical pretense of the abandoned cottage. He felt the coin in his pocket, his good luck charm; it had been with him through the ages, and its faces were worn smooth by his fiddlings. With a couple circles of his thumb over its edge, he hoped it would see him through to the end of this situation, too."
I'd write more but I just woke up and am headed for work lol.
One other piece of advice I guess is, read literature that you like and would want to emulate in your own writing, dissect it, even. What makes this scene powerful/emotional/feel hazardous? Are the protag's goals being realistically hindered by this or that, and are the stakes high enough? Etcetera.
Good luck!
Spring Month: 2 
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