I love it. Fantasy gets boring after some time, magic is boring, throwing some guns and, would be even better, WWII tanks in there would make a hell of a story I would love to read. This story doesn't have tanks, but it does have guns and planes so I'm good with that.
To me, there's something special in showing the contrast between the protagonist's tech and the native's magic, feels like we humans (or the protagonist) are some kind of alien species or eldritch entity. Humans are put in a kind of category that they usually don't fit, that being aliens.