In a zipper bag combine all marinade ingredients along with raw shrimp. Marinate 20-45 minutes, tossing
While the shrimp is marinating, blend all crema ingredients in a small bowl until smooth. Keep covered in refrigerator.
Make Tangy Slaw by combining all ingredients in a bowl and tossing well to combine.
When shrimp are finished marinating, heat a large pan over medium heat with 1Tbsp canola oil. Drain shrimp and discard marinade. Cook shrimp until opaque, about 4-6 minutes.Remove to a plate, and chop roughly, if desired.
To assemble tacos; top each tortilla with sliced cucumber, Tangy Slaw and shrimp. Drizzle with Spicy Crema. Top with torn cilantro leaves and a few more black sesame seeds.