Thanks Julia, your comments really helped. In the photo reference for the left eye the lashes were quite long, so in the photo they were natural. Perhaps there's a 'threshold' of the length of the lashes which if crossed make them appear fake ( or maybe that threshold changes for each individual character's eyes )
Yes, the mandible is quite long.. . For me, I wanted to let go a bit of making things super accurate and stylized since it was from my own imagination ( for photo references though accuracy is key )