I remember that the "arm structure" was not an easy target with the 16". With 24" under Namibian skies it was much more easy and could be detect with the first look through the eyepiece.

Jimi, the outer structure is very interesting. Hard to say if it is an halo fragment or some background galaxies. The nearly opponent positions, the similar distances (5,1'S, 6,6' NE) and the (similar) brightness on the blue plates let it looks like two halo knots.

NGC4361.jpg