Here's an edit I made of your flower pot.
some things to note in no particular order:
- I reduced the number of colours used for everything. Notice how many colours (7+?) you used to form the gradient on your pot. I only used 3. but you can see how dithering (really messy) can help form a decent gradient even with just a few colours.
- I added a bunch of miscellaneous plant growth at soil level.
- I drew over some of the plant growth with soil to make it look like the plants are coming out of the soil, not just sitting on top of the soil.
- I made the colour of the soil more grey/brown, so it would stand out against the red/brown pot.
- I varied the direction and look of the plants heads. notice how all of your plant heads are looking up in the same direction. almost copy-paste. it's un-inspired.
- I googled "clay pot" and fixed the shading and lighting on your pot. not everything needs rim lighting. however i was too lazy to AA my edit.
- I changed the perspective on the actual pot. less of the opening is showing. this was one of my biggest gripes with your picture. the perspectives are off between the plants and the pot. in yours, you're looking down into the pot with 3D perspective, but the plants are drawn flat with no depth.
I hope this helped, keep on practicing!