All these images are just straight center composed images of flowers, nothing really interesting in terms of subject matter.
As mentionned, there is a good deal of "other" stuff in the frame that is distracting and does not contribute to the overall image (IMO).
I also find the exposures are off. The second and last image seem very bright while the before last one seems dark...in fact, the white flower seems more grey
I dont get the first image. There are rocks, part of another flower in the upper right,...
Read on composition, look at pro flower pics to get an idea of what they do. Start by immitation and then take that and make it your own. Learn to get in close on the subject, fill the frame with it, eliminate the background when it doesnt add to the image, learn about compositional techniques like the rule of third, triangles, lines and so on. Learn then, master them, then break them