Anyamal Tantei Kiruminzoo

same feel and 3 little girls transforming  

Again, tipical magical girl series. We have the three main girls: blue, pink, and green. However, Kiruminzoo is a detective group, while wedding peach is more of a monster fighting bunch. 

Both are dedective animes and they both have cute drawings  

cats, rated G, lots of frilly outfits and cute characters. 

They transform into animal battle costumes. Cute characters. 

Girls go on meaningful adventures with cute, magical animals, which also involves the themes of dreams and friendship. 

Both have to deal with super cute animals. 

Both are part of the magical girl genre and involve animals as important plot elements. In Anyamal Tantei Kiruminzoo, the characters can transform into heroes and heroines in cute costumes and also transform into real animals during certain contexts, which can communicate with other fauna. In Jewelpet: Twinkle, there are magical beings based on real animals, created from jewels, and form deep bonds with the main cast; they help the people transform into magical costumed heroines and heroes. They are both very heartfelt and worth it.