Please answer the following question: Given the following context:  Given the standings of the two men, the painting was received in both social and political terms. A number of writers mentioned Bertin's eventful career, in tones that were, according to art historian Andrew Carrington Shelton, either "bitingly sarcastic [or] fawningly reverential". There were many satirical reproductions and pointed editorials in the following years. Aware of Bertin's support of the July Monarchy, writers at the La Gazette de France viewed the portrait as the epitome of the "opportunism and cynicism" of the new regime. Their anonymous critic excitedly wondered "what bitter irony it expresses, what hardened skepticism, sarcasm and ... pronounced cynicism".Several critics mentioned Bertin's hands. Twentieth-century art historian Albert Boime described them as "powerful, vulturine ... grasping his thighs in a gesture ... projecting ... enormous strength controlled". Some contemporary critics were not so kind. The photographer and critic Félix Tournachon was harshly critical, and disparaged what he saw as a "fantastical bundle of flesh ... under which, instead of bones and muscles, there can only be intestines – this flatulent hand, the rumbling of which I can hear!" Bertin's hands made a different impression on the critic F. de Lagenevais, who remarked: "A mediocre artist would have modified them, he would have replaced those swollen joints with the cylindrical fingers of the first handy model; but by this single alteration he would have changed the expression of the whole personality ... the energetic and mighty nature".The work's realism attracted a large amount of commentary when it was first exhibited. Some saw it as an affront to Romanticism, others said that its small details not only showed an acute likeness, but built a psychological profile of the sitter. Art historian Geraldine Pelles sees Bertin as "at once intense, suspicious, and aggressive". She notes that there is a certain amount of projection of the artist's personality and recalls Théophile Silvestre's description of Ingres;...  answer the following question:  What was critic Félix Tournachon describing when he said "antastical bundle of flesh ... under which, instead of bones and muscles, there can only be intestines – this flatulent hand, the rumbling of which I can hear!"?
Answer:
Bertin's hands