This is a really intricate design for the stomach. It is a Thai design. The center flower looks like a sun flower or a lotus. The flower is being support by vines, if you look at this tattoo from a distant it looks like a couple with a center piece in the middle.
The individual also have a small tattoo on the bottom left, that ink is kindda faded, must have been an old tattoo.
The ink work is really clear and vivid. It is believed that getting a tattoo on the stomach is less painful, then other parts of the body that have bones. But you should have no fear in getting a tattoo, regardless if it is painful or not. The art itself is beautiful enough for you to get it anywhere on your body.