I'm still messing around with this tree (original image given to us by DJ can be seen at the bottom). I've added other layers, made my own 'brushes' and changed colour filters.
Have to say I'm absolutely loving this class now I've spent some time reading and learning things properly!
Thank you for all the supportive comments.......
Dragged an old postcard on top and altered the colour mode.
Wrote the words on paper, scanned them and made a brush from them.
DJ's original photo.