All 3 pictures have the subject just over powering their frame. And each is nearly dead center, which isn't the most pleasing way to compose your images. In each picture you managed to clip one or more of the flowers petals. By leaving room around the flower, and off centering them, both issues would have been taken care of.
Picture #3 has other issues. the background, while being OOF is still composed of recognizable objects, and distracting. There is the bottom of a door on the right, directly behind the flower is a stick and the rim of a white flower pot with a blue lip, to the left is a yellow something, the lower left corner has a pink leaf that needs to be removed. The flower itself seems to be somewhat soft in focus, and there are those white streaks that I'm assuming is dust on your sensor.
On a positive note, all three pictures are nicely exposed, and pictures ! & 2 the focus is dead on.
