There might be some speck of commonality where these two intersect, but it is a stretch to connect these two. Both do have wood and vetiver notes I guess, but they are used so differently. Encre Noir is dark and dry whereas Timbuktu is lively and radiating. Timbuktu is a mango floral incense that just radiates sparkling vibes through the drydown which is a radiating incense patchouli wood. Encre Noir on the other hand is an inky Haitian vetiver + Bourbon vetiver that just the opposite of Timbuktu, absorbs all the light from the room into its somberness. To me they are almost opposites. Both do have vetiver in their formula but the vetiver in Timbuktu gets blended with patchouli for and is almost unnoticeable, whereas the vetiver in Encre Noir blends with Cashmeran and stays very much the center of attention - very dark and dry.