Okay, this may not be a "fun" photo assignment initially, but I think there are many of us out there with black Havs that are challenged when we take their pics. We want them to have as much facial expression as their lighter counterparts, but it's hard seeing their dark eyes amongst that dark hair.
If you have great tips, experience you'd like to share, links with more helpful advice, then please share them here so others can benefit.
I'll start with what I do when I photograph Ricky. First of all, most pics are better when taken outdoors, but I still snap away in the house, but have to take more photos and fiddle around with them more when I upload them to my computer. I use Irfan View and will click on 'Enhance Colors' then adjust the lighting and make the image a bit lighter. It lightens up everything around Ricky, but I try not to do it too much, just enough so we can see his eyes and different tones.
The first photo here was taken Jan. 2007 when Ricky was 6 mths. old and it shows all the lighter highlights in his hair (I'm sad that the caramel was lost after his first cut). The only one here that was taken outdoors doesn't quite show his eyes, but you can still see the subtle differences of black in his coat and on his face. You can still 'sense' Ricky is there and not a black blob that so often happens. lol
I dont' have a fancy camera by a long shot, but I'm sure that helps tremendously too. Still, you can play around with your photo/uploading program and see what works best to bring out the character of your Hav in spite of being so dark. Show us and explain to us what has worked for you! Or....... what hasn't worked at all !