Fun! I would recommend relating characters based on their function, pronunciation, origin rather than their place in the alphabet. For example B has more in common with P than with C. Similar for D and T, G/K, I/J/Y.
An example of introducing tengwar to latin-scripted "lang belta" readers: https://drive.google.com/file/d/1Qz22f7ScqHnacRHn_PM1zZ3nUhV...
as well as the opposite direction, introducing latin script to "tengwa" readers: https://drive.google.com/file/d/1gK3q843zdDOpsmKP1lHfoYpDXuf...