Hey Nhu, you’re at a good spot if you’ve only been learning this skill for two months. I agree with what everyone’s said so far.
Your renderings looked tight from this thumbnail size until I checked out the full preview. They could be more refined. Clean up the edges with a harder brush. Be more clear about the color breaks. Why are they transitioning into each other, past their parting lines?
Also, be careful about going too far into the photorealism style. I caution this because I think some students get too caught up in delivering the technique, when the priority is communication. Yes, your images look great. But I have to guess what products I’m looking at. Or maybe they’re new archetypes of existing categories? (Here is where context matters!)
Hope to see another post from you, would love to watch your progress here.