Some remarks to the different parts:
Asterix's part contains multiple scrolls with all different speeds. It was at the time the first one to create so many different scrolls with differents speeds.
TMP's part contained three interesting features. First of all the sinus scroll at the top. This idea was perfected later on by others adding a mouvement into the sinus curve. The second part is the vertical scaled raster bars. TMP was one of the first ones to implement this effect at the time. The third feature being the big fat jumping hardware scroll below the bars. And last but not least the big sprite on the bottom. Interesting was especially the smooth mouvement of it.
Warlock's part, once again very colourful contained two very interesting features. First the smooth upscroll which was a new thing on the scene at the time. And the never equalled genius effect in the middle: The coloured rasters in the middle. The spectacular thing about it is that it contains many more than the 32 colour tones the CPC was having.