First thing first: print the template. Then Glue it onto a piece of thick paper. Let it dry and start cutting off the letters and design... that will be long :)

For the swirls: don't cut it all if you don't want to, cut away only the parts you need to know where it's placed. You can later draw it with a small brush.

Put some paper (5/6 sheets) INSIDE the T-shirt: you don't want the paint to mark the back of it.

Attach the stencil with large scotch. All around the sheet.

This way.

Mix very little water with fabric paint in a plate. Using a sponge paint over the carvings in the stencil.

Let it dry and carefully remove the stencil.

This way :)

Now you have the unfinished t shirt: make the details with a little thin brush and fabric paint. Paint the swirls all over...

Let it dry 24 hours and then iron on the design, putting a piece of cloth between the t shirt and the iron (see the details on the jar of paint)