Wrinkles on the mast and boom make it look like the former could be tightened a little, the latter loosened a little, ...
I concur. Looks like the main halyard needed tightening, at least. I would've slacked-off the outhaul, first, got the luff tightened, then re-adjusted the outhaul for best shape and speed.
Lessee... 15 kts... 35 deg. AWA... Don't know anything about how your boat handles or what you were flying for a headsail, but you might've been able to use a bit of twist at the top for a bit more performance. Should've been no vang on that tack, traveller at the centerline, or perhaps a bit above, ease the mainsheet a bit. That would still get the boom and the bottom of the sail where they needed to be on that tack, but allow a bit of twist at the top. (But 1st the halyard and outhaul adjustments noted above.)
Otherwise: Based on the general shape and the tell-tales, the trim looks good