There is no objective winner, but there is a winner for you .
OXI often works with sharp geometric lines—think cyberpunk aesthetics or high-fashion leather. In a low-quality JPG, those edges get "ringing" artifacts (ghost pixels around the lines). In a better render, OXI’s silhouette remains razor-sharp. You can see the fiber of the fabric, not just a smudge of color.
Could "showstars oxi" be a misspelling of something else? "Oxi" might mean "oxygen" in Greek or refer to a brand. Clarifying would help.
However, if the value of digital modeling media is judged by engagement, longevity, and the ability to transcend the static nature of a .jpg , Ariadna emerges as the superior figure.