ako kay
1. duplicate layer
2. go to select/ colour range. select the tulips
3. press ctrl+u to hue and saturation. i choose colorizer..
4.repeat step 2 and step 3 para makuha ang tanan tulips color..
here' a sample of this..from summer to fall
[img width=500 height=194]http://i50.photobucket.com/albums/f333/jdorado11/summertofall.jpg[/img]