I personally love felix's figures (although his despatching times leave a little to be desired!) but I would not class any of them as original- they all have a very distinctive GW feel about them ( this is probably deliberate from him working in the GW studio and also from a marketing point of view). In fact the elf is probably the most original sculpt of all 4 AOW figures!
I can certainly see Mattys point looking at the picture, as thereare too many similarities to just be coincidence (the armour, winged helm, chainmail cloak etc). However the picture in no way looks like an Elf to me! Although the sculpt may share similar qualities I personally reckon the sculptor has done enough to 'elf them up'- especially the sword armour and helm, as well as the overall build and bulkieness of the mini.
There is also the question of how original can you get now when sculpting an Elf ,Dwarf, orc etc? there are certain features and characteristics that define fantasy races and if you stray too far from these you run the risk of missing the mark completley! The fantasy genre has been about for many, many years now- in art and literature before miniatures, and people have very distinct images of how fantasy races are supposed to look.