I currently have Magma on order but don't want it to be too dark nor too light/orangey. (Clearly I'm looking for "Goldilocks red"?). I'd be ok if it's like the 1st photo (just) but not so much the 2nd one. The photo from Matt Saunder's tweet above suggests it's more like the 2nd photo.
I've seen the Seneca blue in real life and it's really nice - I would choose this but I have an Elise in a very similar colour (Daytona), so would prefer something different. Nimbus might be nice too - but have had many grey/silver cars in the past and feel the Emira deserves something that stands out a bit more. Mind you, I could stick with the tan leather if I went Nimbus, which I would also quite like.
The more I think about it all the less certain I am about any colour... isn't it great to have these first world problems!