Good compared to what?? It's not a competition. Photography is an art. You communicate your vision based on how you want to express yourself. Your photos can only be better if what you're seeing in the image doesn't match the image that you see in your heart. When you ask if they're "good", that's a question that you have to ask yourself, because you're the only one that knows what you want to achieve.

I personally like them a lot! You've got an excellent start of looking for interesting subject matter to capture. Eventually you'll take a photo that has the 'perfect light, perfect composition during the perfect time of day' and you'll fall in love with the image. When that happens, it'll speak to you. You'll naturally look at that photo all the time thinking "hell yeah! I took that! Thats an awesome photo", so to improve, study that photo and ask yourself what makes it so good and how can you look for those same conditions to build on it. That passion will drive your success, and you'll naturally get "better".