That's a fine Orion's Sword Stephane, with a well handled natural looking core and trapezium blend (rarely done this well). Any minor star shape issue is only detectable at full resolution and is really just a needling issue at best, makes little to no difference to the quality of the image, which is high. The star flaring is also a non issue for me, various optical systems have little quirks like this, to me it is merely a nuanced part of astronomical imaging
Totally a personal choice but I would try to increase the colour fidelity/saturation just a little bit and see how it looks
Great job
Mike