Very nice for a first use of the ED100.
Nice round stars and lots of nebulosity.
In my opinion the colour is a bit off - too much blue.
But using an un-modded DSLR means that the H-alpha response is a bit low.
You can try and touchup the colour in PS. I also recall that there were some settings in DSS for unmodded DSLR's to improve the "redness".