The second evolutions of the starters aren't really a bridge between the 1st and 2nd evolution. There are differences that don't make it. It is hard to explain but pic related will show you what I mean. Basically the second evolutions of the starters from Artleaker can't be real because their appearance is way too close to the final evolutions. Second evolutions are usually very different than both the first and final forms but Artleakers starters are too close to the final evolutions. Still though they where pretty creative with those designs