I’d keep this quite restrained because the mirror already gives you a strong focal point and the table is beautifully simple.

Rather than filling the surface with several small accessories, I’d use one substantial porcelain vase as the main piece — perhaps something with warm cream, muted green and a little gold or traditional detailing that works with your neutral olive-green palette. Then I’d add just one smaller object or a shallow decorative bowl beside it and leave some empty space.

I think the contrast could be especially beautiful here: the rustic simplicity of the wood table against a more refined, traditional porcelain piece. It would give the entry some character without making it feel cluttered.

I recently featured an imperial-style porcelain piece in a video about five timeless luxury pieces, and it’s very much the kind of contrast I’m thinking of here. It might give you some inspiration for styling the table:
https://youtu.be/PoZYuVMbVXQ