wall decals removable

http://storesense4.megawebservers.com/modernwallgraphics_com/-strse-147/wall-decal-graphic-removable/Detail.bok

its too small of a portion, but i like sumthing like this..and mayb with some dragonflies...but ive been tryin on photoshop for hours...and still cant find the right way to paint the walls. im having a baby girl in 2 months and the room is blue...so i planned on adding green curtains with plack furniture...but im stuck on the wall part. im a visual person, so i have ideas with circles, but cant put them 2gether..i have to look at it b4 i paint it...cant get the right colors either...i jus want my baby to have the perfect nursery...can n e one help me plzzzzzz..i would realllly reeeaallyy appreciate it.