Questions about example sentences with, and the definition and usage of "Lang"

A: long live the king

A: × I found myself lacking words in English while sharing this great vegan-friendly Japanese ramen restaurant.
✓ I found myself lacking the words in English while sharing this great vegan-friendly Japanese ramen restaurant.

× Let me try my best to get into detail.
✓ Let me try my best to go into detail.

× To be honest, it's such a small restaurant that can only accommodate about 7 people.
✓ To be honest, it's such a small restaurant that it can only accommodate about 7 people.

× But their taste of ramen is so delicious that it's worth waiting in line for a meal.
✓ But the taste of their ramen is so delicious that it's worth waiting in line for a meal.

× They have different kinds of soup to choose for ramen.
✓ They have different kinds of soup to choose from for ramen.

Overall, very good. Also, good use of punctuation! Every period and comma and paren is correct.
:-)

A: × Lang's shoe are narrow and low foot shaped, so they don't fit many Japanese feet, but my feet shape is just like so.
✓ Lang's shoes are narrow and low arch shaped, so they don't fit many Japanese feet, but my foot shape is just right for them.

× That's why I chose them but Japanese manufacturer's.
✓ That's why I choose them over a Japanese manufacturer's brand.

A: I can't log-in to Lang-8 because of a server error. It's so annoying.