This is the original peacock heart combined with several textures.
Hardcore Vintage Grunge by Princess of Shadows (deviation currently in storage)
Soft Blue Texture Pack by letinhastock
Buzillo Grunge 015 by Buzillo
Green Metal Texture 01 by goodtextures
Original drawing of the peacock feathered heart in Corel Painter, modified in PS.
T-shirt with the same basic design for light colours can be seen here
T-shirt with the same basic design for dark colours can be seen here