The coinbase maturity is 256 blocks. That means the coins won't show up as spendable for that many blocks.
There will be an entry in the dcrd log that looks something like: Accepted block 000.... via getwork.
thanks I also found it using my address on the block explorer,,, so why is one of the blocks only 15 DCR ? and what is the other DCR address above mine with each block transaction ?
The block reward is dependant on PoS voters submitting their vote. You must receive 3 out of 5 votes to have your block included in the chain. Every vote is worth 20% of the ~18.35 DCR reward. Odds are you only received 4 out of 5 votes for that particular block you mined.