the initial impression of this character is that he doesn't feel like a trandoshan. He feels like he is written as if he is a human. We recommend reading a bit on trandoshans and working to incorporate a few elements more typical to them into his personality and mannerisms.

Think about how a reptile would behave differently from humans. Build on that.

How did he come to be on that planet he was trained on? were there others of his kind around? if not, why not?
If there were others of his kind there, what did they teach him?
It is also a pretty decent classic to build upon the hatred trandoshans have for wookiees.

You haven't really delved much into his actual skills in comparison to those of others. Writing a bit more there will help others relate to Snow.

You've specified that he is short for a trandoshan, yet more muscular, yet he doesn't have all that much mass for his height. 

There is one thing that would help people even more with interacting with him. What sort of work does he do? What does he avoid? Are there any people he has worked for before? Any groups he refuses to work for? What does he think about the Republic and the Empire? about the wielders of the Force?

We spotted a few minor grammar errors but your meaning got across, so we won't pick at that. Contents are considerably more important than the flawlessness of the grammatical structure. While we have the points above that we think you should work on, we still think you've got a pretty good start on this sheet, [@TrapsCanRP]