I try to keep my lines clean, because I have a bad habit of making my lines "hairy" haha. For example, in the gesture drawing assignments, you can see how messy everything is. For the proportion grid, I spent a lot of time erasing those extra lines! It took forever but I'm glad you think it looks nice
Try your best to get rid of that habit, I have to try too. It gets really hard to get rid of them in the future, because you have to spend a lot of time refining. I took a look at your gesture drawings and they look really nice compared to mine. Super clean lines. Good job!
And good luck! I hope we can improve together