1. Save your current artwork as a PNG, but keep it open in BI.
2. Pick a brush and load the saved PNG as an image color.
3. Reposition, scale & rotate the color-image to your liking.
4. Paint the repositioned elements back into your artwork on a new layer.
5. Optional use the erase brush to touch up your compositing.
If you keep your color-image placement matching your artwork, this method also doubles as cool way of blurring parts of your artwork.
Cheers
