I think you're expecting too much for her age. DD was about 2 before she really got into painting and play doh (I'd recommend gloopy paint like crayola rather than watercolours - more sensory and satisfying for them. At this age it's about the process for them, not the result).
I don't think it was much before 2 that DD 'got' shape sorters too. (fwiw, at about the same time she got very excited about shapes, learned the words for them and started pointing them out in the street - which I think was quite advanced - so I don't think the lack of interest earlier was a problem.)
Stickers are fab at about 2 as well. You can get bags of craft ones, as well as sticker books.
At 2.4 DD still potters rather than really 'play' with toys - maybe spending a few minutes with a toy in passing.That's just starting to change a little bit now: there are a few pretend things she likes, like toy cash register, and she's just starting to like things like matching games. I do find that if she has just one playmate at home (rather than the excitement and hordes at playgroup) she's more likely to play with toys. It's almost as if she follows their example. I think you do need to 'model' playing quite a lot at this age, and I find that hard to do!
As for speaking - it's way too early for you to worry about how much she's speaking. I think very few say much at that age. My DD had only a few words at that age, got quite a few more by about 2 - and after that it exploded! They change so much at about 2,it's amazing!
There are some things you can do to help language, but don't feel you need to be talking non-stop. Narrating is good, but aim for short sentences and repeat in different ways, eg 'Cat! Lovely cat! Let's stroke her. Stroke, stroke stroke. Soft fur. We stroked the cat. Bye bye cat.' Then continue your walk, no need to speak until they show an interest in the next thing (which won't be long). The important thing is to always comment on what they are showing an interest in, especially if they vocalise about it. (don't correct, just echo in a friendly way). It does start to feel natural - honest!