I think we agree on one!

Should be fine to use Kayla and spell how you like!

How about Kayla Fleur?

I haven't read the other replies but what about Kyla?

That was you aren't using the same name as your cousin if it is an issue for you :)

Kaylah?

The other variation I thought of is Kayleigh or Kaylee?

Kayla Lilly ?

I've already suggested Kaylee, Kyla & Keely. DH doesn't like any of them.
I'm just waiting for him to bring it up again before I suggest middle names.
Thinking Nicole is nice. Its my middle name. But I've never really been into using our names for the kids.
I'll see what his thoughts are anyway.

I like Kayla, for May as the middle name you could always change the spelling to Mae, that way it doesn't look so ay, ay ish.

I think Kayla Mae has really nice sound to it.

Good luck and I hope your cousin was OK with you using it, I personally would take it as a honour if someone named their child after mine.

Kayla Renee for four syllables?