Is it the good way to use Margin/Padding in Xamarin Forms XAML? Or increase the transparent surface of image not using margin and padding?

Is it good to use margin/padding to align the position of CachedImage in XAML Xamarin Forms? Or any other preferable/good way to align it so that it can stay consistant to all devices screens?

Like for example:

1[Increase the transparent surface of the image instead of using margin/padding to align the position]