Illustration of an isometric bank building with blue and white colors, in the 3D style, 2d game art style, with circular shapes, a clean background, a low poly design, simple lines, isometric vector illustration, one gold coin on the roof, blue flags around it, trees in front of buildings, a grey ground, at a 45 degree angle, on a white background, with no shading detail, low contrast, low saturation, and flat color. No shadows, no gradient.