Step 1: Draw a large circle to determine the size of the flower, and a smaller one for the pistil. This step is important because without it, drawing the petals will be very difficult.
Step 2: Draw a petal which is closest to the pistil. Here I draw the first petal on the right hand side, but you can choose the starting position so that it is easy to do the next steps.
Step 3: Draw other petals of the innermost layer, pay attention to draw them soft and overlapped.
Step 4: Continue drawing the next layer of petals with the same steps above. Besides paying attention to draw the petals overlapped, remember to draw the petals to open around depending on the bloom of the flower.
Step 5: Add the pistil, simply speaking, just add a few small circles close together =)))
Step 6: Erase/ hide the sketch circles, just leave the main lineart.
Step 7: Draw the same with other flowers, then add leaves to make it colorful=)))) Drawing flowers without leaves will look very weird hehehehehe
Step 8: Base the picture, in this step we will paint a light color layer to make the background. Choosing the base color is quite simple, just light green for leaves, and light pink for petals ;)
Step 9: Darken some places like of the leaf veins and undernearth of petals. Blend the color to make the picture more vivid =))))
Step 10: Shade the picture and line it with a watercolor brush.
That's it =)))) Good luck to everyone :))