I recommend this acrylic painting sets. You can choose which brand you like, Reeves and Liquitix Basics are both good choice. It has no Burnt Sienna on the package so you can mix red and black to create the color.
Artist brushes which are almost similar to what I mostly used. I like the synthetic bristles, which you can play it with the tree leaves. Don't throw it away when it becomes old. The bristle scatters and it is better for textures on tree leaves.
Cheap sets of 12x16 inches canvas, canvas pad and paper palette.
Easels for comfortable painting position.
These are the basic materials you need to start painting.
Note: I haven't tried to use this materials. I just found it on amazon.com and I think this are almost the same with my materials. I bought mine on local art store. I made my canvas personally. So I think the canvasses I mentioned above are in good quality since they are for sale. And Also I signed in to the affiliate program of Amazon so buying it would help me a lot.
Oil Portrait Paintings, Landscape Oil/Acrylic, Abstract and directly copy from picture. Best for birthday gifts, anniversaries, weddings and even for personal collections.