You are doing great, we do great. This is art, even fast art, considering the circumstances you work and you are a fast learner. The fact you keep painting, trying, studying proofs this is you, it shows your heart (no matter the colours, if it looks the way it should be or we or others have in mind).
Everyone has his own style and the most important is that, just like freewriting, we keep doing it. For the painting, to test brushes, ideas, paints, materials, to spatter, try out different styles. Your acrylic reminds me of water colour paining just the paint works different.

I like it, there's art and art and it's good to study it from a distance. I would stand still if I saw it to study it.

Like you I am not able to make an exact copy. I tend to change everything, paintings, drawings, recipes. It has nothing to do with not improving, a lack of skills. It's all about creativity. A creative mind needs a little hint and next will do as it feels it should.

There might be time you can make it more perfect, or just smile at it, the colours you picked, the joy it brought or the frustration.

I wonder why 7 brushes. Why not 1 or 2. Tried that?

P.s., covering the paint on the pallet might be a good idea with the higher temps you deal with. It's getting cold here again,