Since he never replied to you, I'll explain. On his Camera Data section, we can see that the Aperture was f/10.0 (read as F-stop of 10). The larger the f/stop, which also means the smaller the aperture opening on the camera, the larger the area in focus will be. The smaller the f/stop, the smaller the depth of field (DoF). So, for example, an f/stop of f/4 would have a tiny Dof (and macro photos generally use a small f/stop). An f/stop of f/12 would make a large DoF. Generally, landscape photography uses f/stops of f/8-f/11 and even up to f/22.
This photo used an f/stop that is generally used for landscape and photos needing a large DoF, as a result, more of the butterfly is in focus. Here's a photo that might help explain better if you're a visual person like me: [link] As a warning though, the larger the f/stop, the smaller the aperture on the camera: [link] Because of this, less light can get in with a big f/stop, which then means you need a longer shutter speed to get the right exposure. This can make it hard if you're working in a under-lit place.