I guess your question is geared to the uneven edge of your quilt if you are using paper pieces;   and there are two ways of looking at this;  the first is to leave the edge uneven and add borders to which the uneven paper pieces are appliqued – this will give the look of the patchwork floating.

The other is to make half templates to fit in the gaps so that the paper pieced patchwork then has straight edges – you can also do this and then add borders by machine.

You would then layer, quilt and bind as usual(see our video on layering if that helps)

Just a thought about the quilting – most of my students do this stitching a 1/4″ away from the seams – and this can be done by hand or by machine