YOUR SECOND KNIFE'S HANDLE IS CARVED LIKE THE HEAD OF A HORNBILL BIRD. IT IS VERY SIMULAR TO DAYAK WORK FROM BORNEO BUT COULD HAVE BEEN MADE ELSEWHERE LOMBOK OR BALI FOR INSTANCE. THE WORKMANSHIP IS VERY GOOD AND I HAVEN'T SEEN ONE LIKE IT BEFORE.
HERE ARE TWO EXAMPLES OF HORNBILL CARVING FROM BORNEO FOR COMPARISON. YOUR KNIFE DOES REMIND ME OF WORK DONE IN LOMBOK

AND STRIKES ME AS INFLUENCE FROM DAYAK AND BATAK STYLES. ITS A NICE ONE I LIKE IT.