Photoshopping Into a Silhouette

So in these pictures, my goal was to make a silhouette. Since I was not able to capture it with the camera, I could transform it in adobe photoshop. Photoshop totally changed the entire picture into something brand new. The end picture was not what I imagined it to be, but it is a silhouette....and that is what I wanted.

Keep in mind that this is the original picture of a Lilly flower. 

This is a photoshopped version from the original picture. This one was photoshopped to make it look like the flower was in the light and the background was dark. Unfortunately, this picture looks unnatural. It looks as if it was taken with flash. 

Now, I tried photoshopping that original picture into a silhouette. It didn't work out because as I darkened the flower, the background would also darken too much. So, if I darkened the picture a bit more, the flower would be black, but the background would be too dark. 

I experimented with that picture, until I actually got a silhouette. But as you can see, the background got very dark as I decreased the exposure. Although, I did something different. I did decrease the exposure pretty low. Then it got to a point where the background was very dark. Then, I added shadows. The shadows made the Lilly flower even darker without changing the background color. I also changed the contrast level to brighten the background. A very small amount of vibrancy was added too to add color to the background.

Now, after I experimented some more, this is what I came up with. This is a real nice silhouette. The Lilly flower is nice and dark and the background is light enough. I just added a lot of shadow, contrast, highlight, and vibrancy. The shadows and contrast brought the flower to a dark state and the background to a lighter color. The highlight brightened the picture a bit. The vibrancy just added more of a blue shade to the background. Now, if you look in the back, it looks like there are stars, not clouds. This also proves just how much changing the lighting can change a picture. Compare the original picture to this one. There is a huge difference between the original and this picture.