It’s great to ask for feedback. Below are a few things that stood out to me—I’m sharing them to help you improve. What I’ve noticed is that when you open the tip wall, your attention is drawn to the large white elements like “nim tipped” and “tip sent,” while the actual “send a tip” button stands out much less because it’s small and appears on a dark background with smaller text. It’s almost as if that first part isn’t even there. Also, here’s a suggestion: on the second screen, move the input field for the number of NIM to tip slightly upward, give it a different background color, and set a default value of, say, 100. If someone clicks a button for 25, 100, 250, or 500, the default value will be adjusted accordingly.