The window was also a pain to get all those lines and squares just so. For the couch I created a pattern in Illustrator, copying 3 different lines in three different colors and off set them just right to create a sense of depth and then grabbed different sections and warped them, or set them on different directions, in Photoshop, piece by piece, until I got the desire effect of 3D-ness. Thank you, I' delighted you appreciate it ^_^
I love it, it looks very awesome <3