Some juniper bark:
Shimpaku which is red and is usually scrubbed smooth to highlight the contrast between it and the shari:
And tosho, with brown bark which is usually left intact to compliment the ruggedness of the deadwood:
Finally i have an entry in this thread. Shore Pine, Pinus Contorta . Collected Vancouver Island. No idea of the age but older than i am for sure! Collected 2012. Began training 2015.