You may find the following links useful.
A chat and tour of his trees with the Chairman of SYBS.
Federation of British Bonsai Societies (FoBBS) http://www.fobbsbonsai.co.uk/
Bonsai Empire https://www.bonsaiempire.com
A beginner’s guide to Bonsai:
For advice on how to grow trees from seed:
Advice on tying a tree into its pot: