You got in closer, that's good. i'm not sure about the placement of the flower though. I've cropped it so the flower isn't so close to the edge and not centered horizonally. You've got that great diagonal branch running through the picture, put it to use!
As for the coloring, it still looks like you're using a soft-edged eraser. You need to pick a hard edged one, crank the opacity up to 100%, and zoom in to erase the BW from just the flower. Also if the eraser you're using has a "hardness" setting, go 100%.
In addition, what I did was select the flower and branch, then invert the selection so just the background selected, and applied a Gaussain Blur.
Here's what I'm talking about
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