I need help with playermodel

I want to ask for help with this Bez-tytu-u — ImgBB
I made this playermodel and i dont know how to attach the head with jigsaw suit. When i used this playermodel, head was under the player and not cropped to face but it was with background.
Thanks you for reading and please help me =c

If the head and suit are 2 separate meshes, try joining them with CTRL+J.
Also make sure transformations are applied, in object mode you can use the blender search button to do a “Apply all transformations”; the head might also not be rigged to any bone, make sure you weight paint it to the head bone.

Also what do you mean with “not cropped to face but it was with background”? It would be helpful to have a screenshot of it in game to see the problems.