while some (IMO) seem a little too happy about demanding things, i would rather offer you a sugestion. nobody can be expected to know everything or every language, but the english speaking part of the community is quite large. so if you are serious about your game you should try to find someone that knows the original language as well as english (and spanish for that matter) to help you translate the dialogue, that will help you reach a much bigger audience and potential backers to help you along in development. having your game in "broken english" as its called, will deter most english speaking players from playing your game(my self included, unfortunatly) as it can be a huge PAIN to read such dialogue.
i wish you the best of luck with your project, the renders looks nice
so i hope you will find a way to get a decent translation