How much does it cost to sell on SuperRare?

Could you please elaborate on the costs associated with selling on SuperRare? I'm particularly interested in understanding the transaction fees, if any, as well as any additional charges or commissions that might apply. Also, does SuperRare have any hidden costs that potential sellers should be aware of? And lastly, are there any upfront payments required before listings go live on the platform? It's important for me to have a clear understanding of the financial implications before deciding to sell my digital artworks on SuperRare.