new tattoo design help

hi im new to this site and just need a little help in choosing a new tattoo so hope some 1 can help.

i want the tattoo to be able to blend in a little with the 1 i already have i want to turn it in to a half sleeve bit by bit this is the tattoo i already have

i just up loaded it so not sure if it worked but i want sumthin that will go with that any 1 got any ideas or websites i could look on.thanks for your help..