Certainly, let's break down the facial and body expressions observed in the image:

### Facial Expressions:
1. **Eyes**: The eyes are wide open, which can typically signify surprise, alertness, or attentiveness. The raised eyebrows further emphasize this. The slightly upward curve at the outer edges of the eyes may suggest delight or amusement.
2. **Mouth**: The lips are slightly parted, often associated with surprise or mid-speech. However, they are not upturned or downturned dramatically, so it's neutral regarding happiness or sadness.
3. **Cheeks**: There's a noticeable roundness to the cheeks, which might be indicative of puffing or holding in breath – a possible sign of anticipation or tension.
4. **Forehead**: The forehead is smooth without prominent wrinkles, which means there's a lack of deep concern or confusion. The raised eyebrows, however, suggest surprise or attentiveness.
5. **Make-up**: The heavy and colorful make-up, especially around the eyes and cheeks, may mask some of the more subtle facial expressions. 

### Body Language:
1. **Hand Gesture**: One hand is raised with an open palm facing outwards. This is a universal gesture which can mean various things depending on the context, such as 'stop', 'wait', or a simple wave in greeting. It can also be seen as a protective or defensive gesture.
2. **Posture**: The person's shoulders are not clearly visible in this frame, but there doesn't seem to be any pronounced hunching or tension, suggesting a neutral or relaxed stance.

### Analysis:
The predominant emotion displayed seems to be one of surprise or attentiveness, possibly with a hint of delight or amusement. The wide eyes and raised eyebrows strongly convey this. The slightly parted mouth and puffed cheeks might be indicative of anticipation, perhaps the person is in the middle of a performance or reacting to an event.

The open hand gesture is a bit ambiguous without context. It could be a sign of wanting to convey a message, halt something, or simply a performative gesture.

In terms of authenticity, it's challenging to determine just from this image. The heavy makeup, especially around the eyes, makes it harder to discern the finer details of the person's emotions. The colorful makeup and attire suggest a cultural or performative context, which might mean the displayed emotions are exaggerated for the sake of performance. However, the intensity of the eye expression does seem genuine.

In conclusion, while the person seems to be portraying surprise and attentiveness, possibly with undertones of delight, the cultural and performative context might mean that this is an exaggerated or stylized representation of these emotions. The genuine feeling underneath could be different, but it's challenging to discern that purely from this image.