Great image. It is bold but not too much. I find it inspiring and I'm tempted to try it out with my TEC180 at f14 using a barlow....
Re the Ha, have you considerd doing a "continuum subtraction" and then blending in the Ha? There is a lot of red in the Ha image that isn't strictly Ha. This method attempts to get rid of that extra red light so only the critical pure Ha remains. And, that Ha can be blended straight into the red channel (and a bit in blue to give it a pinkish colour so the Ha regions are not pure red).
There are several sources of videos on this method. Adam Block has one but you would need to subscribe.
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