Perfectly fine if you enjoy them. It's worth noting though, they do narrow down your options quite a bit, but obviously if you're happy with that. More importantly, do you have an idea of what you want to go on to be/do at university? It's worth noting that subjects like Economics for a degree (especially at more prestigious unis) require Maths (sometimes even Further Maths). So I'd really recommend checking entry requirements for any courses you're interested in
Likewise, an accounting degree (or apprenticeship) doesn't require accounting (or any subject whatsoever actually, it's just the grades). So if you think you'd prefer to free it up with another subject, it's definitely worth considering.
All in all, your subjects are fine (and complement each other very well), but if you lack a specific idea of what you want to do, you might want to consider a more varied selection, or similarly if you do know what you want to do, take a look at the entry requirements as you might be surprised and be able to do something else (if you like it, of course: grades > subject, generally).
Hope this helps! Good luck