Hey there,
There are examples of the 2d environment in my portfolio on the site, or you can also visit my Instagram by the same name.
I loved the game hollow knight. If you have an idea about how the main character should look, then I can forward you the concepts for it. And we can do so for all the other elements that you need.
Hero character animation can include: Running, stopping, jumping, attacking (2), jumping & attacking, evading, dying, special. And other if you have an idea.
Do let me know, yeah I am excited about making games and sprites. I have made environment in tile, and character overall. But never the whole project. So here is a heads up, but yes will be looking forward to hearing back from you.