Yes:
Use of symbolism - Tudor rose, portcullis
Exploitation of marriage and birth of heir - use of Tudor rose and links to King Arthur
Welsh lineage - red dragon of Cadwallader
No:
Marriage to Elizabeth of York
Birth of an heir
Backdating of Battle of Bosworth and subsequent Acts of Attainder
Crowned himself before Parliament was called
Imprisoned/ defeated other claimants to the throne
In conclusion - mostly invalid - supported his actions with propaganda but it was not the primary method he used to consolidate hius power