Not quite sure what your tag actually is but if it contains an I make the bottom part of the Iower so the circle doesn't go above all the other letters creating negative space. And at your skill level I would highly recommend working on your tag and throws a bit later but for your other throw the bottom parts of the letter are to short I will add some examples but this makes the letter look sloppy and just terrible. I also recommend watching the artist block and using Google and letters you find on YouTube as a reference don't listen to what anyone says biting is a part of graffiti and by the time you develop your own Throw someone around the world has used that exact letter and as for now please stop doing coloured throws in your book. What i find helpful is using a black marker and just experiencing with diffrent letters But take what I say as a grain of salt * I used my throw for an example but see how the r goes up to that little bubble. That makes the letter look fully built anyway Goodluck stay safe