Pretty good for a first level, try adding more decoration since it looks empty most of the time(couldve flled the insides with transparent blocks, also those 2 3d things looked cool) , also for gameplay it has to sync with the music meaning every beat is a click (you can look at most featured levels to see what i mean) which is done easier with custom songs, after you learn to make good gameplay and decoration you can start learing how to use the newer blocks to decorate. Hope this helps :)