I like to travel and am trying to figure out how to do more of it given the twin constraints of free time and money.

If you figure this out, tell me.

Your food section is making me hungry ... but pickled onion monster what?

Your photos are quite good, and the captions made me giggle. I can see why you picked the one you did for the top picture, but I really like the smile in the last one. Smiles are very attractive.

I tend towards more brevity because I find I get bored of most long profiles (this one mostly avoided that) and I assume most women have the same reaction but I'm not sure if that's a mind projection fallacy.

For what it's worth, I think your profile could be a little longer, but the length of the one whpearson linked is excessive. Information content > brevity, but clarity > length.

Humour does seem effective in profiles but one of the reasons its a good signal is it is hard to fake and I'm always wary of trying and failing, more so in writing than in person.

I agree with this. I find humor to be a mild attraction boost, but obviously deliberate attempts at humor which flop are a pretty big turnoff. (For the record, being funny constantly, even successfully, also is--I need to know someone is capable of taking anything seriously.)

This is the problem with a lot of dating/profile advice which observes that people who are _ get lots of dates/messages. It's easy to say that, looking at the data, but much harder to squeeze any kind of practical advice out of it, since "be _" usually isn't.

That said, if you do add more content to your profile and want an opinion on e.g. whether the humor works, I'd be happy to give it another eye.