Sigh !!!!
Don't worry, Colin, it will colour up later with exposure to light to something like a butter colour. I like it because it is really light in the hand. And . . . I like your arrow passes too.
Those I have made from Red Ash were good shooters and usually took from 1.5 - 2" of set with normal use, but the cast remained pretty good. Your can always heat-reflex them straighter though. I have done it like this diagram below with good effect. It looks like an odd way to do an ELB, but it stiffens the centre section and forces the ends to whip a bit more.
- Centre-reflexed-ELB-former.jpg (25.42 KiB) Viewed 3966 times
On my <45lb ELBs here, centre bending as above usually puts on 5 to 8 lbs of draw weight which is a pretty high proportion of the original draw weight and doesn't seem to overload the centre of the bow as a full reflex of the limbs would. The bow comes out with a straighish centre section when braced which bends late in the draw.
But as this present bow is bespoke, there is no point in modifying it to increase draw weight I suppose unless the buyer asks for that down the line.
With full reflexed ELBs, when you draw them out on the tiller, they seem to compress from the middle outwards, ie start bending in the middle and move outwards from there. With a more whip-ended bow, the limbs appear to me to 'peel' down from the tips first and bend progressively more toward the centre with the centre just bending at the very end of the draw. This is purely an observation and I could be imagining it, but I think it is observable by others. It is just that nobody else has spoken about it or noticed it.
By the way, did you use the 'under-bark' surface as your back or did you quarter saw it to boards? I have always used the underbark surface even with the dimples you often find along that surface.
bow 
.... love that arrow pass to, as for the set you know what they say, set happens