Although I like sexcoin and I bought some myself just for the hell of it but it's rather risky too invest at this point.
I'd rather suggest you to invest some money in NXTcoin and/or eMunie once you're able to, risky aswell but it could turn out really profitable.
Gotta agree on Litecoin, I recommend you to buy at least a few.
Besides that I think you're portfolio is quite good