That looks great Slawomir, nice soft rendering of the gas with few stars, that 3nm Ha really blocks the stars and shows of the neb. Actually, it's interesting to compare to my
single frame version taken with the AG12/big 16803 combo and a comparitively much wider band pass 12nm Astronomik ha, heaps more stars in mine huh? I think I like yours better
Hope you get a colour version but like the Horsehead the Carina neb lends itself to B&W quite nicely.
Mike