Number one: I like this photo, but maybe you should of came in more and took the photograph from the right, giving the viewer a better view of the younger woman.
Number two: A bit bland, and the green blur in the top right is distracting. Try to make the flower stick out more.
Number three: This picture would of been nice is you put the white flower in on a pile of dead leaves. Show us that the decayed life is taking over the beauty of the flower.
Number four: Mind your frame disruption. On the right side the frame cuts off a budding flower, so maybe crop that out? Other than that it's a nice photograph to me.
I'm sure if you're lucky some other members will give you better technical advice. Keep up the good work.
I a also fairly new. I like the color and lighting I am just not a huge fan of the composition. They sit to in the middle for my taste. Lots of potential though, good work