I like both the dresses but agree the one you already own is the best.
The origami top is interesting but if you don't feel fab in what's the point. The ON top I like but again if you're not feeling it back it must go. So many cute sleeveless tops, unfortunately sleeveless is not really appropriate for where I work . It's shame as I seem to have so many and struggle finding things I like with sleeves.
I am with Lisap, I feel like the skirt is too voluminous and wears you instead of the other way around .