Did you know that the Blastoise GX FA & RA were both some artist's first ever cards? It's okay that they are bad for that reason, but Pokémon actually using those is what I don't like. They should have just made him make some regular cards, or at least a GX nobody cares about instead of one of the most popular Pokemon of all time.
I've seen some of the other works they did before, I actually really liked the meganium render the artist did. I actually don't mind the RA blastoise, it's one of the best the artist did in that style, but I think the full art has a lot left to be desired because theres nothing at all to compliment blastoise. The render isn't the best (especially compared to Ryo Ueda's) and it just kinda ends up being underwhelming.
I'm glad they're trying to get more artists onto the ultra rare scene, I really am. I hope that the people working on them improve and they also do what TTGXs are doing and having different styles of art (especially apparent with the SR prints). Or, if anything, I hope gen 8 does ultra rares artwork better.