First off, I've lived in a Victorian home and several other homes with original wood floors. I am also not an expert by any stretch of the imagination, but I'm familiar with cleaning and caring for this type of floor. Also had a 1950s home's wood floors sanded and refinished in the last 5 years and inspected carefully after (and had some pretty bad damage from leaks/cats).
Overall, I think it look okay. Not bad at all. Depending on how much you paid, I'd be less inclined to make a fuss actually (only you can really gauge the value really).
I am sad that they didn't do the contrasting floor inset colors in the hall too when they refinished. The cute box/corner color was really a lovely unique character for those floors and now it's just blended in and looks a bit off considering it had cut/inlay sections. I think they did in the larger rooms?
The patch section would not bother me. There is no good way to 100% match the existing wood floor's age and tone unless they used pieces from elsewhere in the house, and I wouldn't be put out too much by it being slightly off. If this house is as old as I think it is, then a few well patched areas just add a bit more character to it. Variations in color for wood floors is part of the beauty and it looks like a good match/well done in grain overall. It will also likely change as it ages/oxidizes too.
If the final pic in the series 0794 - isn't just in need of cleaning/polishing, then there is a weird haze/swirl marks that seem either poor sanding or else there is a poor application process in the sealant.
I'm seeing several areas that look like they applied the stain, then for some reason waited a bit too long to do the blending (the choppy areas right above the 4 L shaped on its back nail holes in pic 785 for instance, but seeing this elsewhere). So the edges weren't worked/blended while wet enough. It would be worse if they used a medium/dark stain, but it would be something that bothers me a bit for a $$ professional application.
That same pic - 785 - has the staining/dark line in the middle of the hall? Odd stains in the wood itself, but likely nothing they could do without sanding the holy hell out of the wood or just replacing. The edges you're seeing - looks like they didn't take off the quarter rounds at the baseboards and just sanded up to them? If it really bothered you, they likely could have removed/replaced them if they couldn't have gotten the edges sanded well enough but the costs would have been upped to make and install new quarter rounds. Considering what they started with, it still looks pretty well done and I myself wouldn't consider this a "bad job" situation.
The drippy stuff is just sloppy work. Definitely would point that out and ask it to be fixed.
I likely would get some opinions from folks that know what they're looking at (there are several folks here that have experience) but just me, I would ask with concern (not anger mind you) about what they can do as far as the haze/drips/blended areas (if the haze I'm seeing is part of the floor that's a definite "please fix this" with the understanding that it is not acceptable but if the haze is just reflection/needs sweeping and a bit of mopping then the rest of it isn't really bad at all).