Ah, we have some CN going on here. Cross was great, it's what I saw as well.
First 2 pairs were awesome. The W/O was already ready for an U F U F' insert, but you managed to insert a pair while preserving that one, which was awesome and something I'd never consider.
3rd Pair was bad, you almost never want to do double rotations. The pair itself was good, but it would've been much better to use L moves to pair in the back, and then you could do a single rotation to both insert and bring LS to the front, eliminating the rotation in the 4th pair. Backslot inserts are a key to advanced F2L. Almost always, the best thing to do is either to avoid rotations all together or to do a single one to turn B moves into L/R moves.
That's a nice 4th pair, I usually do it like this:
(starting right after the y) U R U2 R' U F' U' F
But what you do is nice also, I like mine little better though personally
OLL and PLL were fine
Pretty good solve overall!