First go with the ATIK314l+ Momo CCD with filter wheels on Orion Nebula

I am very impressed with the Orion Nebula from photos I have seen in this forum. Recently bought the ATIK 314L+ Mono and QHY5 for guiding and my first go at the Orion Nebula . HA filter 5 mins x 10, RGB 5 mins x 5 each. Quite please with the result after stacking the photos though the trapezoid is burn out As I am relatively new in Astro imaging any comments by the experience forum members of what needs to be improved will be much appreciated

Kim