I'm half-way through making the Snow elf race for Icewind dale: Rime of the frostmaiden and I don't know what racial traits I should add. Any suggestions and tips would be helpful.  

Hi! I literally just made one of these: 

Tundra Elf

Ability Score Increase. Your Constitution Score increases by 1.

Arctic Adaptations. You are naturally adapted to cold climates and have resistance to cold damage. Additionally, snow and ice never cause difficult terrain for you.

Tundra Combat Training. You have proficiency with longswords, longbows, light armor, and shields. 

Biting Instincts. You have advantage on all Wisdom (Perception) checks that rely on sight, all Dexterity (Stealth) checks made in snowy climates, and all Wisdom (Animal Handling) checks made to interact with arctic animals. 

Cool, thanks.

He's the description of my one-

Secretive and reclusive, Snow Elves tend not to associate with other races or even other kinds of Elves. Their lives spent in the harsh tundra and arctic wastes of the north have shaped these nomadic tribes into self-sufficient hunter-gatherers, who have a deep-seated sense of superiority verging on xenophobia. Snow elves are notably different from their more temperate kin in that they are very tall and hardy. Females can reach upwards of 6' 4" and it is not unknown for men to grow over 7'. They tend to have pale white skin and their hair ranges through light brown, blonde or even stark white. Their eyes are generally in the spectrum of ice blue to silver.  

I've been actually making some lore to do with Icewind dale: Rime of Frostmaiden involving Vampire hunters called the Icedawn because of the everlasting night.