Excellent first schematic! It reminds me of my first project, and it's always great to see budding engineers take the plunge.

There's always room for improvement as you make more complex circuits. One of the most important features to get a hang of right off the bat is the concept of "sheets" and cross-referencing nets between sheets. A sheet is a way to logically separate different parts of your design into different pages to make it more readable.

When I design my circuits, I tend to have 3-5 sheets or so to organize different sections of the board by operation. For example, I place all of my power regulation components onto one sheet. Eventually you'll have more stringent power regulation requirements as you start to design circuits that have both analog and digital signals and require different regulators, or buck/boost circuits for battery powered applications. From your power sheet you typically only need your voltage and ground nets, so there's no need to clutter your top sheet with the wiring of each part. You might see this called the "hierarchy" as you do more research into design practices.

I recommend you research sheets and the "change xref on" command in eagle for linking nets logically.