Okay. This is a hard one.
Emotion 1: I love both sigs. But keeping to the theme and style, I have to go with No. 1. That artist aced the requirements with a beautiful set of emotions that you commonly see on Earth. You can either be sad, happy, mistorunate, lucky... You name it. (I also have that good mixed reaction from Madoka, so thank you godly mahou shoujo.)
Rose Field 2: While the fields is not roses, it does carry that style. While it is not dreamy, the sky here can represent a nightmare or a unpleasant dream... Which it still counts being dreamy... In a different way. Angle and camera focus with the right elements fit well as a sig or a professional photo. Sorry Entry No. 1.