Oh I thought they used to allow direct links! Would you be able to just link to the artwork page though? That way they count as a view, can favourite, and can download the zip from there and help my ranking.
If they download the image straight from your site, it will not count as views/downloads for me
Hopefully that isn't too hard, I'm trying to work on my branding at the moment and increase my traffic, I hope you understand
Let me know if theres any issues with that.