Hi! I would say "Ready with an Issue", based on this question (and if I missed this somewhere in the deliberations I really, really do not want to re-open a can of worms):

s3.4 requires that the message digest algorithm MUST be the same digest algorithm used by the Composite ML-DSA algorithm. Does this requirement extend RFC 5652 s5.6 (Signature Verification Process"? If the answer is "yes", then I think we should say that s5.6 is extended and that the signature is not valid if the two signatures are not made using the same algorithm.

One nit (**there is NO impact on bits on the wire as this string is not transmitted**):

To avoid an annoying errata later, use "identified-organization(3)" in s2's OID strings from draft-ietf-lamps-pq-composite-sigs instead of "org(3)".

NOTE: I didn't verify the ASN.1 blobs in Appendix A.