Plants

The first one is Betula pendula (check at google )

I think you should try to isolate the subject more. I know it can be hard especially if you're using compacts with small sensors that don't really allow blurring background. Try different viewpoints or moving closer until you have a simple background without any distracting subjects (e.g. pic2: fence and the ball).

Pic 3 is definitely my favourite although also in this one you could have zoomed in or moved closer to remove the fence behind.