Hey these are good ideas ! And if it's your first time making orchestral, plus you didn't made music that much it's really cool :D
I may have liked a bit more layers. Rythmic or melodic either, it could help you flourish your ideas and bring more life into it :)
The town theme feel like being determined going on an adventure, it could have been longer :P
I really liked the Foutain theme, very calming with a sweet melody. This one could be embellished a lot with time :D
Congratulations and keep guinguette on making music !!
Ps: the titles and instruments let see the zelda inspiration ;) i like it!