Anca Gray. That's the name of the artist whose work you are enjoying. Lovely work is it not? I have always been a fan of mixed media artwork. There is such a textured, organic feeling to it which imparts such authenticity. It was pieced together a bit at a time. I would guess it's very similar to interiors. Composition, texture, color, scale, and of course, knowing when to stop.
Hope everyone is having a nice week thus far. Keep on plugging.