Is this a balanced portfolio? What would you keep/remove? What would you add?

Note: Bitcoin, Ethereum, Cardano, NEO, IOTA and Tron make up more than 70% of the portfolio. All coins were purchased between Sept 2017 and Jan 2018, including during the recent crash.

Bitcoin 
Ethereum
Cardano
NEO
IOTA
TRON
OmiseGO
Substratum
BitShares
Loopring
AirSwap
Electroneum
Modum
UnikoinGold