This is definitely a bar-sided skink (Concinnia sp.) but it could be either C. tenuis or C. martini, as both species are found in this area and look quite similar. These two closely related species are distinguished by close examination of the secondary temporal scales. The upper secondary temporal overlaps the lower secondary temporal in C. tenuis, or the upper secondary temporal is overlapped by the lower in C. martini. Since this detail cannot be seen in the photos provided, I think it prudent to leave this sighting as Concinnia sp. unless someone can distinguish between these two species using another criterion.