Mine is 20 months and has about 80 or so words, not sure as he can basically copy what we say now. He puts two words together; "More cracker" "mummy car" "big truck" etc.
He can recognise (and say) diamond shape, oblong, circle, star (all on his shape sorter) and similar to above he loves the number 2 and that one he can recognise on house numbers etc. He can count to 13.
I think he knows green but that's all re colours (and I think that's because of traffic lights)
He can point to loads of things in books and will search intently for things if you ask him to look for them.
He has a bizarre and useless skill that he can recognise my car make and his friend Ben's mum's car make and when we are out and about will point out "mummy car" and "ben car". He does love cars though.
Similar to mewkins he walked early (11 months) but it's in the last couple of months that he can actually trip but not fall and can kind of regain his balance whereas in the past he would fall much more often.
I think he's probably a bit ahead of where he should be, especially in terms of language and walking/running, but equally there are other children in our mum;s group who were much further "behind" for example with walking, and now you would never know who walked early and who late. I'm sure it all evens out as they get bigger anyway.