
I am not sure this is an ad or something since it's in Chinese however it is still graphic design. The visual techniques strongly evident to me are ACCENT and SINGULARITY. It has accent which is the black V-like abstraction strongly contrasting and set against the plain gray background. The V-shaped figure (if you look closely are two people pointing at fishes in a pond) are the highlight/focus of the picture. Even though the V-shape is a combination of elements (the fish, people etc.) you see it as one thing because it looks so SINGULAR, as one separate/isolated group. It looks singular because it appears mostly opaque,continuous and sharp (the inside of the V which enables you to distinguish the shapes of the fish, the pointing fingers and the head, not the outside ).
Comparing my two Visual Technique examples, the Fish ad (the one directly on top of this) looks so simple compared to the complex knotted ball of roads which make up the GPS ad. With the fish ad, things are easily distinctive from one another. there is the background and there is the accent or the focus which is strongly visible through its opacity, darkness and shape that contrast against the empty, light background. The GPS ad on the other hand fills up the entire picture. There is not a single empty space. Every inch is occupied with something whether its a street, a tree or a house. There are so many elements that make up the picture and each element is distinguishable. You can find cars even though they are so tiny. This is why the GPS is complex. And as opposed to the singularity you see in the Fish ad, there is juxtaposition with the GPS ad where you put the knotted ball of roads (which is unusual) into a normal surrounding where roads are flat. Accent is definitely strong in the fish ad. The ball in the GPS ad is also an accent by the shape of the ball against the flat surroundings, but not a very strong one because it still bears similarities to its background despite its odd shape and you can also see that there is this continuing connection with the background setting and the main subject (the ball is connected by the flat roads).