Instead of curving the body outward, start curving inward then out. As you can see, the stem starts more in the back of the head, so use the positioning I told you. (.1, .2, .3, etc.)
Try to attempt the legs using blocks instead of just setting the block to zero 0 and texturing. Make the head a little longer, and experiment with using angled blocks.
Also, try making the leaves larger, otherwise, the model is a good start, and I like the texture.