The artist who drew this set of costumes for Anti-Rain is the same artist who did MG36 and Stella's CG. Out of all the costumes in both the "March in G Major" and "To Our 5th Year" procurement pools, the only costumes who were drawn by a different artist would be Anti-Rain here and Type 97 Shotgun's costume whose drawn by her new artist. Everybody else was drawn by their original artists it would seem.