Hi Jose, 
 
nice work, you didn't made it quite easy for yourself by using padoek. 
Normally for sikimscabbards they use a very soft almost white kind of wood. 
 
Padoek is  African. 
 
about the shape , if it was my piece I should file out the curves somewhat to make the overall look more Aceh. (see pic) 
 
Arjan
		 
		
		
		
			
		
		
		
		
		
		
		
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