Quick update on the spider riders (actually there will be no riders) arch. Note the dead dwarf at the bottom of the arch. I've removed his weapon (normally an axe) and will simply place the dropped wretch at his side. I've trimmed off his normal helm and given him a miners helm with the candle flame removed and added the side flaps to the helm.
From the original spider rider bases, using an Xacto knife I've trimmed the little spiders off one of the bases to add a little something to random parts of the scene.