The Scorbunny and Grookey evos look the most convincingly real. However the Sobble evolution's image uses no Kanji whatsoever literally all of it is in Katakana. And compared to the other pictures there is like no emotes and no emphasis on body parts which is suspicious because this is something that would help animators figure out how the creature moves, and helps them see the distinct parts to the design so when they draw it, it would accurately reflect the design the creator intended. Also it's the only one if the three to have it's name listed, as well it having おしっこ (oshikko)(means piss) written next to it's smiling picture. Which is either a joke or a mistranslation.
The Grookey image is definitely fake not for art reasons but because I feel like it's going against the concept for Grookey. Grookey is definently going to be the feminine starter evo this region because of it's name English and Japanese name. In English "Groovy + Monkey", and in Japanese "サル(means monkey)+ノリ(comes from the word ノリノリ which means Rhythm/Excitement)= サルノリ(Monkey Rhythm) which I can't tie to baseball and it looks more feminine from the hair stick it has which is definitely a girl's hair thing.
For Scorbunny's evo, it has the most detail of the three but there is the fact that it was uploaded by some Instagram dude, plus they used the original SM female trainer for size comparison. I also feel like it's going against Scorbunny's athletic design.