He says, I do sometimes hear from writers who know a published illustrator who has created some illustrations for their manuscript, or who has offered to do so, or who might be persuaded to do so... They wonder if in such a case the usual warnings about submitting manuscript and illustrations together still apply... [E]
ven if you submit your manuscript with the illustrator's samples, and even if the editor likes the samples, she may not
believe that they are a good match for your manuscript, or even that teaming up your manuscript with that illustrator's work will «help» it.