Well darn and drat that - it seems so unfair - that whenever you look in Hot Sellers you're not there! Next time I see one of your designs I will take a snapshot to share so you CAN see it. And I think you're right about SF's algorithm - it does seem to be influenced by number - and in a weird way (e.g. for me a wallpaper three roll sale showed up but not a five yard fabric sale... explain that!).
They're not really my type of colours. However, when I was on my way to doing a different design, I stopped at this stage in my rendering instead because I thought it would look quite bold in the palette.