Both unity and variety are important in still-life photography. In the first picture, you can see all the different vases and other objects but you can also see that everything has the same color scheme. In the second picture, the objects are all glass but they are also different shapes. in the last picture, the water gives it variety. these things help the picture to tie together. In the first picture, I love the colors and that there is a shadow of the plant. In the second picture, I love how the things further away are blurred out and how you can see the surface that they are on. My favorite picture is the last one. The viewpoint is very good and helps to make the water drops really pop.