While they are very different I think both of your designs have a lot you can play with, which is great! The mobile design on your first one, I would recommend having something behind the text in the middle as they kind of blend into the background. There's a lot of negative space that you can work with! Your second design is very visually striking and is awesome, adding different shades of green would definitely spice it up! Especially for your name, a darker green will make it stand out more
