I think you're asking how is embracing a foreign culture different than cultural appropriation? If so, then I would say that there is probably no single answer to your question because people seem to interpret the term "cultural appropriation" in different ways. Up until about 10 years ago, I knew it to have one specific meaning, that is when a dominant culture prevents a subjugated culture from preforming some aspect of their culture and then later adopts that aspect for themselves. This behavior is discriminatory because of the way that the D.C is treating the S.C while hypocritically taking from that culture. Now I see all kinds of interpretations that seem more in line with basic tribalism. Not being allowed to wear certain hair styles etc.

Oh wait, You may have just been asking why is this not cultural appropriation. It's because it's an Indonesian artist photoshopping Hollywood stars into photos. The stars themselves have not taken part in any of this.