It's really nice,it's really great to see someone trying something new,i really like your idea.As well i have some suggestions so you could turn that wall into one great piece.
First is the colours,i don't think purple/pink is the best scheme for the wall."Making waves" shows the power and fury of nature,so you could use dark blue colours with lighter blue colours on places,because purple is a really calming-down colour.
Next,i think you should add some water drops or wave splashes on Teo's legs,because now it looks as if he is just walking on the waves,not making them,this is a little detail you should work out.
I like the whole concept and the positioning of the city and the wave itself.May be you should sharpen a bit the wave picture/or not,this is just a suggestion.
I really like the text,it fits the wall,but i think you should put some work in it.As the whole wall is simple and plain (in a good way),i think you should add more details,not just some low opacity text and some other low opacity text,add gradients make the text tad bigger,add more details in the letters itself.In v2 i think the small text isn't needed because it's a bit edgy,or just change the font.
These are just suggestions,i hope i helped,and i can just say keep it up,produce some more interesting walls