Battle for Fillydelphia

Hello there! Here is an illustration-commision for a russian fanfic by Bf109 - stories.everypony.ru/story/698…
"Battle for Fillydelphia" tells a story of Lightning Dust and her brother Ray right after the episode "Swarm of the century". When a swarm of parasprites attacks Fillydelphia, they are the one who have to save a day. May be even with the help of mop and broom. But who cares about it, when the destiny of the whole town lies on their shoulders? Find out some facts from the Lightning Dust's past and see if heroes well succeed in their mission