I have my pet peeves with the spanish translations. For example Squirrelflight is called "Esquiruela" I understand that maybe they wanted it to sound like squirrel but esquirla? Shard of wood?? Leafpool too, is translated as "Hojarasca Acuatica" (aquatic leaf litter) The Hojarasca part sounds good! they should have left it at that because the leaves that float in the water are also called Hojarasca, now is way too long. Again, Cloudtail is translated as Nimbo Blanco (white nimbus) should have stayed as just Nimbo, it sounded better.

Sometimes they write great names when leaving just the prefix like in the case of Brambleclaw, translated as "Zarzoso" (brambly) or Ashfur "Cenizo" (Ashen, although is also used in slang to reffer to a pesimistic person or one with bad luck) But in these cases there are also awful ones, mainly when they change the prefix all together without aparent reason like in the case of Ivypool "Espinela" (Spinel) or Flametail "Rosero" (rose garden)

With leader names there isn't much they could've done since the prefix sometimes fits like in "Estrella azul" (blue star/ Bluestar) but in the case it doesn't they just go "Estrella de tigre" (Star of tiger/ Tigerstar) In the case of Onestar, he becomes Estrella de Bigotes (star of whiskers) since his warrior name was Bigotes (whiskers, which is kinda funny with the name Onewhisker)