I like the simplicity of #66 - try rotating it by 45deg and using different color combinations - perhaps keep the shape in 1 shade, and put it in a rounded square background of another color
on the right track with the rotation. try to keep 1-2 colors for the petals, and 1 color for the center. I also liked how you put #73 in a circle - try putting it in a rounded square like an iPhone Ap icon. and play with different colors. see which one captures your eye.
Please find the attached revised designs. I think I did not fully understand your comments but I have try to do Kindly check & let me know if you like any change.
you're getting it! let's try a lighter shade of green and get rid of that white partial arc at the top half. also, if it's not too much to ask, try using a 5 petal flower, where the petals are curved in one direction, like a hibiscus flower.