Continue to have fun! It's a great start. I like the first picture quite a bit.
Work on your metering technique. Your negatives are underexposed. If you expose more, you may need to shorten your developing time a little bit, to avoid blocked up highlights.
If you have a room in your house that you can make completely dark, you should learn how to make contact sheets. You need three trays for your chemicals, a flat surface, a sheet of glass, photo paper, and a light that you can switch on and off easily (like a 15W light bulb). That will tell you more about how you're doing with film developing than scanning ever will. You can still scan the contact sheets.
Keep up the good work!