You can panel it up with louvers / wooden rafters to conceal all the electrical and make one like an openable door for services if required. A focus light on the wall or a hanging light provision in the ceiling will elevate the space. You can check my Houzz profile for reference.
In this type of corner, you can decorate easily. You don't have to invest a lot of money. I will share with you a reference image for this space thanks!
Solids and Voids
Ruchishil interior
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