I personally have much more percentage in bitcoin because it has always been the safest option out there for investment specially as a diversification asset.
as for the rest I would reduce ETH and XRP, or even dump them all because things are not good at all with either of these coins, they are overly pumped and ETH has the ICO disaster that is upcoming. you can read this article for more information:
https://medium.com/@WhalePanda/i-was-wrong-about-ethereum-804c9a906d36the rest aren't that bad, but I think it is best if you increased LTC amount a little. and also don't just have a fixed set of coins in your portfolio, try to explore and find better short term investments. there are a lot of coins out there that go up from 50% to 200% in one day.