Guebwiller - Eglise Saint-Léger

The construction of the church Saint-Léger (= Leodegar, Ludger) in Guebwiller started in 1182 and took about 100 years. The building, built from red local sandstone, is pretty huge and the style is between late romanesque and early gothic. The most interesting point I found is, that the architects of this church obviously spent a lot of time in Rosheim, studying the church Saints-Pierre-et-Paul, that is only about 30 years older. There are details in Rosheim, copied here.
But the masters working here, never reached the elegant style seen in Rosheim.

The main portal under the arches of the westwork like façade. The pillars are very well and delicately carved, as well as the wall behind, covered with geometrical floral patterns. But the heads under the lintel - and the tympanum itself seem a bit clumsy. There is a very small face on top of the archivolts. Is this a self-portait of the carver?