Great looking Dr.1... I like this scheme and black is sometimes a hard color to get to look right in this scale but yours looks great... perhaps the small amount of blue you added? The PE does improve the overall finish, detail items that I would be trying to add (with varying degrees of success) from stretched sprue... I'm assuming that Jacobs aircraft only had the one gun sight?
I do like the Eduard kit, I've got the new moulding of the Revell and as mentioned, while being molded in red plastic I also think the wing ribs look a little over done??? But, I've not built it yet so those are just impressions.
Take care
Scott