The layout seems to have been inspired by the Enzian E 5.
I'd say it looks far more like the US JB-3 Tiamat when ground launched.The layout seems to have been inspired by the Enzian E 5.
I was about to say "For a French missile, that looks very German".
This is what World War 2-era guided missiles look like. However, if you look at early French missiles in their own right, they too have their own particular appearance - which is different from British (e.g. Fireflash, early Folland Red Dean), Russian (AA-1 Alkali) and American (BW-0 Terrier, early Falcon, prototype Sidewinder, Sparrow I) missiles of the same basic generation.
I'm unsurprised that it was cancelled. For a missile that got axed in 1957, it looks at least 12 years older than that.