my siblings and I are Filipino with very minute percentages of S. Asian and European. I have 2 grandnieces and 1 grandnephew who are 1/4 Filipino but they don't show any Southeast/East Asian physically at all. All have med brown hair, one has very light Blue eyes, one Grey and the boy has dark Hazel Blue Grey eyes if that makes sense, very light skin. And I have met other 1/4 Asians and Filipinos who look mixed or very Asian. One Thai girl on youtube with the typical Thai features has 10% Scandinavian. So it depends on what the genetic gods give you.