daily sketch (traditional): Good Luck Gecko

One of my coworkers is taking college courses in biology right now. I drew this as a little encouragement for a test she's taking tonight. I only now spell checked it and found out I spelled "endeavors" wrong lol. Better that than "academic" right?

Art wise I tried using this to get a little better at inking. It's subtle, but I used two different micron widths for this: an 80 for the outline, and a 30 for everything else. I also tried using a white Gelly Roll pen to add some spots on his back and tail but they don't come through very well. I'm thinking of getting a white out pen for things like this. Does anyone know of any other precise tools for applying hard white details?