How will i EVER get this puzzle figured out??

This looks imposible! they have been bisqued and high fired and now i need to put all the pieces together again so my mosaic will be complete.. i have labled them by numbers and letters on the back and put arows saying top or botom to figure it all out. at this point i have some of it put to gether but i still have a long way to go. who wants to help?