Love small TTRPG adventures!
The hardest thing in making them, imho, is keeping descriptions concise while still grabbing the GMs imagination. I've been using small descriptive words / sentences, but am always second-guessing myself when I've trimmed too much fat. Short, descriptive, playable. That's the goal. Short description give a GM some wiggle room as well, though you can skew towards too much. One example:
"Loam: Beefy. Guards the mine. Falls asleep every night, to his shame."
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How do you keep your sentences short and sweet? Any special techniques?