Can you tell me if this beginning of my short story is any good?

Brilliant! i really like how you capture the main character's perspective, and good use of descriptive language. maybe some of the language that you use is slightly patchy, (eg: a foreign tongue). maybe you could change it to " a language that i didn't understand". Perhaps that's just me. you could do a little more character development on Derek; he doesn't seem that believable to me. really got me interested though.