It is an amazing kaleidoscope of sights, sounds, smells and colours.
There’s nothing wrong with using one or more of these details to describe the character – except that they engage only the sense of sight.
Descriptive writing that is one-dimensional like that can be tedious.
Sounds can sometimes be tricky to describe accurately, so here is a good place to use a figure of speech. Similes work well, too – “the cry of the fox sounded like a child in terrible pain.” You’ll mostly evoke the sense of taste under two circumstances – when characters are eating and drinking, and when they are kissing and canoodling.
(When they are actively using their mouths and tongues, in other words.) But always look for ways to incorporate it in more unexpected situations in your novel. Like all five of the senses, touch can be painful or pleasurable.
You may visit and experience the night market yourselves.
Both locals and foreigners agree that the night market is the most common feature in the local society.
Most of the vendors busily set out to set up their stalls respectively in order to get ready for a brisk day of business.
The sun gradually sets and the night market picks up momentum. By now, the stalls are neatly and strategically arranged to entice their customers.
Even so, the mere mention of those things likely conjured up entire settings for you.
So again, just finding one really evocative smell to describe will go a long way. And if they are truly silent, describing the of sound will be interesting in itself.