The option for half-elezen ears like Hilda’s would be nice for some variety. We know the Spoken races can interbreed, even if it’s frowned on culturally; you can justify the ability to mix in a few cross-racial traits for interesting results. Au Ra scale patterns on a femroe, the dual-ring Au Ra eyes on a miqo’te, Hilda’s ears on a midlander, whatever. Doesn’t need to be hugely obvious—the cross-racial one could be more subtle, again like Hilda’s ears—but I feel like it could add some visual variety to character designs.