I think that the fishing spots should look different from each-other so you can actually know what are you clicking.
For example in the fishing guild theres 2 types of fishing locations, one is cage-harpoon, other is net-harpoon. they should look a bit different so i dont have to hold each fishing spot to see what does it contain( in PC i can just hover over the mouse and end of story)
Other thought ( maybe for the future?):
To have a "configure" option would be nice for me to choose whether i want to "net" or "harpoon" a fishing spot - that would remove the need to be holding a fishing spot with a finger which, in small mobile screens can become a bit annoying
Otherwise, very nice work on the mobile, i really like it !
PS. Still waiting for Galaxy tab A 2019 to be compatible to finally play it on bigger screen