The main issue with this setup, is the kindling must be stuffed under the pan to burn, thus stifling the air flow the fire needs to burn efficiently and clean; the fire starved of oxygen struggles and must be maintained frequently as it produces a less than ideal heat.
My modification starts by slightly angling the parallel logs into a subtle "A" shape. Next, I add a third log at the end of the parallel logs. Last of all, I change the location of the kindling so it's no longer stuffed under the pan, its now on the third log with an additional log laying perpendicular for a heat reflector.
Its quite easy to accomplish and elevates the fire from the stuffy interior of the parallel logs to the open air, now heat created is reflected into the cooking pan or pot as well as the 3 logs to which it sits; the logs underneath in turn glow red with embers sustaining and magnifying the heat the humble kindling creates. Its a pleasure cooking on this firelay, stews are boiled with hardly any effort in terms of fuel gathering.
...A hand full of sticks has never done so much work!