Would anyone be able to identify this phenotype of neocaridina?

[who_lian_sanchez]

Hi, 

 

I'm fairly new to shrimp keeping but I am a seasoned fish keeper. I’ve been thinking of breeding shrimps for a while and have found interest in red galaxy fishbone boas. I have found a seller and he has sent me photos (please see them attached). I am still struggling to grasp the differences between what makes a shrimp a boa and not just a regular galaxy fishbone and so I was hoping to get some insight as to what I may be getting. As you probably know, these are not cheap shrimp and I’d just like to make sure I’m getting what I pay for. Thank you :).