Craig that's a very good image in opinion. Your stars are excellent and there is indeed much detail visible, you've handled Zeta Orionis very well and the framing is perfect, overall I'm very impressed
I think your colour balance may be under the influence of your light supression filter though as it appears to be kind of two tone ie red and green/blue? Try imaging without the filter, maybe shorter exposures and more of them and use really good accurate flats taken at the time of imaging, otherwise my friend, dark skies it has to be, you will find (like I do) that it is like chaulk and cheese!
Not sure you can use LRGB filters with a DSLR because they are already colour matrixed at chip level..?
Mike