hello everyone im after some suggestions advice on a tattoo to go smack bang in the centre of my chest

my thoughts so far are the praying hands holding the cross on chain
possibly a cross with angel wings
or maybe a dragon of some sort

at the minuite i have 2 full sleeves so cant really do a shoulder to 1 side chest piece and i want it black and grey mostly shaded and pics of what you have or any good ideas designs please post em up


cheers everyone