Texture: the detail of the surface and how it appears
The texture of the red rose appears smooth and sleek, in comparison to the rough and cracked background. The contrasting textures emphasize the soft features of the rose.
Value: how light or dark something is
The yellow roses have the lightest value in the photo, and the deep red rose is much darker. The background is the darkest in the corners, along with the creases between the petals of both colored roses which are created by shadows.