First time adding in Ha to RGB

Object IDM1 Crab Nebula
DetailsRGB: 2018-12-03
Ha: 2018-11-01
Telescope250mm f4.8 Newtonian
IDAS P2 LPR
CameraAtik 460EX @-20C
Baader 7nm Ha and RGB filters
Exposure(s)Ha 6x300s 1×1
RGB 10x60s each 2×2
Darks / BPM
CaptureAPT
ProcessingNebulosity, Photoshop