Good idea to try with a short cardigan? Grey wool cardigan from Red Valentino featuring a round neck, a central front button fastening, long fitted sleeves, a sheer black polka-dotted hem section with a grosgrain bow detail.
Garment inspiration: An interesting, sleeveless cowl knit tube top one could wear with either end of the tube "up." It even has a halter-wear iteration. While labeled a DIY, it's just this series of s (Diy Ropa Patrones)