I’m yet to see how “Tu vales por two” resonates with bilinguals because “two” sounds contrived. The Spanish phrase is, “Vales por dos.” Replacing “dos” for “two” does not make this phrase Spanglish. It makes it incorrect in English and in Spanish and for that matter in Spanglish.
This is a good example of amateur Spanglish, non-fluent Spanglish or Spanglish for beginners. For Spanglish to work, it has to be a mix of emotionally-charged words in Spanish that are commonly known among Spanish speakers which do not translate in well English or words that were first learned in English and never learned in Spanish because they are too long or impractical.
Spanglish is an “insiders” language that is learned through socialization and mingling with other Spanglish-speakers. Spanglish is spoken among a subculture of in-group members who grew up speaking Spanish and English simultaneously.