I'm doing some studies of film stills right now and when I saw one from the movie "Winter's Bone", which is quite similar to the painting above, I decided to take it one step further.
I didn't want to do something lovey dovey but rather a serious moment between Liara and FemShep, each of them having their own worries about the other one or their future in general. You decide what they worry about. Still FemShep is going to Liara right after a mission (I do that every time in the game) and Liara immediately takes care of the minor wounds. Maybe they don't even speak because there is no need to. They love each other and that's important - worries are a part of that I guess.
(I know the stripes on Liara's Normandy hoodie are on the wrong side but I wanted to show she wears it