I’ve heard the Welsh LL pronounced with a bit of an HL sound at the end, like a guttural “sh-h-l” sound. I’m trying (although episodically, and not very hard) to learn Welsh, and the LL sound clearly is the hardest to replicate. (The CH actually is pretty easy, like the CH at the end of the Scottish “loch,” or the CH at the beginning of a very Hebrew-accented Yiddish “chutzpah.”)
Sounds kinda Sylvester the cat to me. Ssssssssufferin succotash.
How many languages do you know?
Celtic languages seem daunting for an English or Spanish speaker. I had an “Encyclopedia Britannica” computer program as a kid and they had soundboards for various languages, I loved how the numbers 1-10 sounded in Irish.