What a wonderful front yard you must have, and a great source for painting. Where I live here in California, they're really making everyone cut way back on watering and scenes like this are going to get more and more rare making such rich paintings of lavish gardens all the more appealing. But even based on its own merits, regardless of those considerations, it's really beautiful.
I love the array of flowers you've created. Nice design. I like the variations on the theme using scale and distribution around the canvas. And the details are a celebration of the character of the flowers.
The one thing I might comment on, and this is based on personal taste, is your investigating mixing colors and control over your values and saturation. Right now, everything is roughly the same saturation of color, and the values are within a certain spectral bandwidth. And there's a time and place for that. It's certainly not a bad thing as you have it. In fact, it's very good.
But to characterize it, right now you're design is delicate. No problem. But there are other choices for other paintings. If you ever wanted to experiment with using contrast more, it would give your paintings a slightly more dramatic quality. In a nutshell, if one starts out with some neutrality, then atop that when one puts in areas of stronger color, those marks then stand out more, and the tonal accents have somewhere to go. If you have everything bright and add something else bright, it will be more subtle.
If one chooses to make everything bright throughout the picture, it makes the painting's statement more one of an overall tone. Again, that's okay. It's merely a matter of the artist's taste and what they want to say and the voice they want to use. There's a time and place for everything. And this painting is quite beautiful as it stands and the quality holding the interest is in large part the compositional design and the way you're orchestrating the display of the flowers. I quite like it. It shows a lot of growth (pun intended). Excellent momentum.