The flag is rectangular, approx. 5:8, blue over aquamarine (?) horizontal, with a thin counterchanged stripe over all (approx. specs: (19+1+1+19):64). On the white area, three symbols side-by-side:
near the hoist a red half disc (showing NW and NE quadrants), offset to the bottom of the stripe, perhaps standing from setting sun;
centrally, offset to the top of the stripe, a dark yellow shape similar to an "eastern crown" with five stems, but probapbly standing for aurora australis ("southern lights"?);
on the fly, a dark brown outline of a human hand, with thumb turned to the hoist (i.e., either a right hand seen dorsally, or a left hand seen ventrally).
On the lower fly, ruining it all, the lettering "Villa Ortega" set in a sans serif face. All this assuming that a flat flag image showing the obverse is at the official webpage. António Martins, 19 February 2006