What are some tips for first time painters?

I have always been interested in taking up painting as a hobby. I love art but have never attempted to paint it (or draw). I bought some canvas today along with acrylic paints, a pallet, an easel, and a variety of brushes. What are some starter tips? I have no plans to be the next Picasso but I don’t want my painting to look like my 2 year old did it. I enjoy paintings such as these ones. How hard do you think something like this would be for a virgin like myself?