VİDEO;
https://www.youtube.com/watch?v=oiGe70opnow

A bit little for 1700 prop you should take a look to " 10K list " mod wich is not ez to use but permit greater thing ;)
Also if you want it's an island you need to make it distached from beach else it's a " peninsula / presqu' ïle " xP

@CreaMPLuX Also you should use different object like " coast " rock it would permit you to free/earn some prop amount space
same for veg, you should put some buch in order to replace the veggrass cause this grass is nice and good (less that the blueberry xD) but it use a lot of prop to cover a little area
This and you also add a cave into the little hill i think it would be cool ;)

@Shaezbreizh I hope you like :)

@Shaezbreizh Thank you for your suggestion

@CreaMPLuX Awesome map dude!

@jedijosh920 Thank you

@CreaMPLuX I like but it 's too little I think that why I suggest you to give a try to 10 K list ;)
for vegetation search to " plant_group " I think you will like and with these bush you will save some prop space compare to the veg grass so bigger island ;P

@Shaezbreizh Your maps are excellent

Gr8

@CreaMPLuX what is the name of the palm trees in map editor? Ive been looking for these ones.. Also great map btw!!

@CreaMPLuX Check this out:
https://www.gta5-mods.com/tools/map-builder