My portfolio includes the same alts, except MAID which I havent even heard of yet (will be checking later), thanks for sharing! Maybe you would want to check out EOS, NEO, PASC, ADA, KMD, IOTA as well, also STEEM and BTS is always a good pick.

Anyways, maybe you want to give Ethereum a second look, maybe not for exponential growth but it is still a good choice for a storage of crypto wealth, specially with the planned upgrade.

Best of luck to you!