Looks fine to me, depends on your ambitions, if you are aiming for the "oxbridge" level at university they are "low".
I got ACD in my AS year, which I was quite happy with, although with how badly I did in A2 maths (which I got the D in at AS) it means I'm probably going to have to take a foundation year but oh well it doesn't bother me too much, doing well in that opens more opportunities (could potentially opt for a degree with a year abroad which had an ABB entry requirement).