Above is theStyle Guide and there is Supergirl on the back cover.
But Garcia-Lopez also did some of the stock art on DC's licensing pictures as well. These look much more recent that the mid-80s given the outfits as well as the DC 'swoosh' logo. Despite the 'mid-riff' costumes that were Supergirl staples in JLU, the latter part of PAD's run, and the whole Loeb renewal, it seems that DC Licensing material always has Supergirl in a Matrix style red skirt/full shirt.
I love this picture above ... heroic, happy, strong.
There are also lots of pics of the Women Trinity - Wonder Woman, Supergirl and Batgirl. Despite decades with different Batgirls with different costumes, it seems the DC Licensing Batgirl is Babs in her more classic costume.
It is a quibble but I am not into Wonder Woman or Batgirl sporting the high heel look.
Here's another more action style pose of that Trinity.
And then this pic showcases the Women of the DCU. It is pure 80's with the head band Supergirl, the red unitard Donna Troy, and that Zatanna outfit I like to forget.