An observation: the colour treatment of the sky seems 'patchy', e.g. pic 2 and 4.
My personal opinion is that, although the colour treatment makes the photos unique, it doesn't really convey the mood, which, in my interpretation, is happy, free and as your title suggests, chasing love. On the other hand, the colour treatment suggests melancholy.
Pic 4 is arguably the best because the model is not really smiling, thus fits the colour mood. The model is also exposed more correctly. I agree with nemesis32 comment that crop is too tight.
My suggestion for a small fix is to increase the exposure for all the photos slightly so to give a more 'bright' feel. Maybe bring up the midtone to give that 'sunset warmth' feel. A major fix would be to redo the colour treatment, use it elsewhere where the mood is appropriate. (if you don't get what I mean, we can discuss this offline via PM).
Hope my opinion does not come across as demeaning. I like the photos, but if I were to PS them, I would do it differently. Cheers!