Lenoir joins Elle Macpherson and the panel - Julien Macdonald, Charley Speed and Grace Woodward - as they eliminate the second girl from the competition.
Next week's episode will also include a task set by T4 presenter Miquita Oliver, which will feature the girls rummaging through bins to put together a vintage outfit in five minutes.
Afterwards, the contestants will be given model makeovers and sent off to take part in a couture shoot modelling high-end jewellery for Links of London. However, the shoot proves problematic for two of the girls as they fall out with the photographer.
Britain's Next Top Model continues next Monday at 9pm on Living.