In my daughters school the highest are level 6 on maths, science, English, RE, Level 5's in history, geography and IT and 4 in Spanish as it is a new subject. I would say your daughters SATs levels in a lot of academic subjects are well above average. There would seem to indicate that she is better at history than geography (though very hard to really say this), getting on very well in Spanish, above ave at English, maths and science, ave at IT. I don't know too much about DT and art but think that 5 seems quite good. As people have said, with subjects they have not studied much before, you would expect lower levels.
I can only base it on my year 7 daughter who is v academic and is level 6b in maths, 6a in English 6a in science, 6 something in music, 6c in RE, 5a in history, 5b geography, 5c in IT, 4 in Spanish, 5c in art and 5c in DT. She is not especially good at art or DT and rubbish at PE (3a/4c!)
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Also, my daughter is v good at listening to what she needs to do to get to the next level and doing it. Therefore, some children may work hard but not necessarily get the next level until they realise what they have to do to get it. I'm not a teacher but that is just my experience of it.