In this topic i saw a spectre of emotions that is difficult to be recreated with any medium. Not books, nor movie, and not even some pretty famous pictures known all around the world managed to touch me and make me fly with my mind as these pictures here.
Lagrimas...
Despite the vast background the pic feels very intimate and secluded, a place just for Lisa and that little chinese Lamp giving her a little of confort... but she's turning away from it. The shading is dark, and the pic is quite sad though, but not in a way of tears, cries and desperation. It's more of a feeling of losing, of almost giving up. The details are as always very nice, Lisa is cute, one just wants to leap into the pic and reassure her, tell her everything will be alright.
Recuerdos de Tristeza...
It looks to me like this pic is the sequel to "Lagrimas". Here, it looks like Lisa just lost to the emotions, and she watches as her tears melt in the uniform cold water, as her dreams? The background is more wild, there is more turmoil in the pic, and less darkness. Lisa's sadness is in the bright day, for everyone to see.
Holy Love...
Rebirth! As Casper said, this is just a perfect analogy for Lisa, a flower blossoming. Her nakedness might be a motive of censoring was it done in less meaningful ways, but in this picture here it adds just so much to the meaning. Besides, it's very tasteful.

Oh, loved the little studies we can see all around the main picture... it's like reading the story of the picture

In the Name of the Sky...
Lisa is reborn, and all traces of sadness have been left behind (yay!!), as she flies carelessly through the blue sky. It's a picture of pure force of freedom, of will to live, of joy and beauty. Lisa sings, screams out her lively self to the entire world "I finally found happyness, and you can find it too, so jump and fly with me!"
* SimpReal jumps and flies...