A wordmark alone would have been the safe answer, and it would have made the same mistake all over again - clean, competent, indistinguishable.
So the identity carries two things. The wordmark does the professional work: it sits on an invoice, a proposal, a sign-off. The mascot does something a wordmark structurally cannot. It demonstrates that I can draw. For a designer whose clients hire illustration as often as layout, that is not decoration. It is the portfolio, compressed into one mark.
Same principle as the crosses hidden in the Little Steps wordmark: put the meaning inside the mark rather than bolting it on beside.