I don't want it to sound rude, I love your work, but I don't really love any of these starters, I mean the final stage all look fat or slow, in my mind aquatic pokemon should be agile and moving fast (atleast in water), I usually take a water starter but I prefer the designs you made for the fire and plants one (which are awsome by the way). Don't take this to badly, I don't want to be mean, just that I think I should tell you what I really think instead of telling you that I love them if it's not true.
No worries you don't sound rude at all! It was really hard picking just 5 per type, and thats why I tried to have so many because it guarantees there's at least ONE starter that you like out of all 15 starters. I also tried mixing a lot of different creators to keep it varied as well.
I'm sorry none of these appeal to you but hopefully there will be some other water types in the game that will make up for it. You don't have to love them all I appreciate your honest feedback there will always be pokemon you dislike more than others.