How can i export images collectioon from Google Earth engine?

Question

I am trying to export images from a set collection,but i can't. I type the code:

var landsat= ee.ImageCollection('LANDSAT/LC08/C01/T1_TOA')
.filterDate('2014-01-01', '2019-05-01')
.filterBounds((ee.FeatureCollection(table2));
var Landsat8Clip = Landsat8Filtro.clip (ee.FeatureCollection(table2));
print (Landsat8Filtro);
Export.image.toDrive({
  image: Landsat8Clip.select("B4", "B3", "B2"),
  description: 'Landsat8_30m',
  scale: 30,
  region: ee.FeatureCollection(table2)});