Basing ideas?

[dim yew]

I like this model but the base feels empty. I tried filling it with some skulls, but it’s eh. Any tips?

[iron aurora]

Maybe some slight drybrushing of a light tone on the edges

Honestly I think it looks good

You don’t want to distract from the mini too much

[white thorn]

I agree! I think it looks great as it! I'd paint the trim black and call it done

[formal stream]

You can always add a nurgling. There's also little branches from The sylvaneth kits to look like dead scrub