Is it possible to request a code review?

[IM]

I started learning D recently. As part of the learning process, I 
started working on some D projects to experiment and learn. My 
first project is a tasking system library that I plan to use in 
another D project I'm working on.

The goal is to be able to post and run any task asynchronously on 
current thread, new thread, or thread pool, and possibly getting 
a callback on the posting thread when the task has run to 
completion. I will probably expand it more as I go. I've just 
published it on DUB here: 
https://code.dlang.org/packages/libdtasks

Being new to D, I probably made many mistakes, or did things in a 
way where there's a more optimum one to do in D. I'm eager to 
know how to improve, and would like to know if there is any 
experienced D developer who is thankfully willing to take a look 
at it and give me feedback?

Thanks!