PIF, these pictures are great and I enjoyed it very much to witness Bramble and Tigs first encounter with the "Outside World"...
I remember many years ago when my sister brought home her first kitten...at that time there weren't any harnesses available at the Petshop...so we tried to fix one ourselves...and then happened what must have happened...Moni escaped from the harness...she roamed the whole garden and we didn't dare to move...it didn't take her long to return to us...having this mieschievous look on the face...

Your cat family is always a pleasure to meet!!!