Betta Fish: any way to improve his home?

is there anything i could add to improve his home?
he surfs the glass a lot so I'm wondering whether he's bored 😅

the plants on the back are from cuttings so theyre still growing 😆 the light's not the best so most of the plants can only be in the middle:)

he lives with snails only:D i want to try adding shrimps and see his reaction though:D

(his name is Lucifer)