it should be bumpy, but it should not have extra leaders/spikes growing off in different directions from the comb, or on the back. I like this guy's comb!
there are a few bumps on the first comb as well, but it has more of a thumbprint shape or rounded hollow center, which is not desirable. also no real leader yet, but it could still grow in (he is young?)
this is from the wyandotte breed book:
Rose Comb.—A low. solid comb, the upper surface free from hollow center and covered with small rounded points. This comb terminates in a well-developed spike which turns downward on Wyandottes. (See figure 3.)
source: https://openlibrary.org/books/OL23362546M/The_Wyandotte_standard_and_breed_book
Edited to add:
although the smooth comb hollow center is not desirable, it is not a DQ it is just points off. so it can still be worked with if other areas are strong.
---- Roughness, irregularity, hollow center, over-size and ill-shape in comb, each defect...... 1.5 to 2 points deduction
---- Coarse texture of comb...... 0.5 to 1 point deduction
---- More than one spike in rear of comb, each...... 1 point deduction
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