I know how to post pictures but how can I change the size if possible

If it's a pet picture from this site, at the end of the image url, there's a &size=__. Change that number, or if it isn't there, type that in. The biggest size is 500.

For example
https://www.sylestia.com/image_builder_pet.php?species=griffi&breed=sylesti&gender=male&gd1=HH&gd2=AA&gd3=AA&md1=FF&md2=FF&md3=NN&ec=7B05AF&c1=010301&c2=271805&c3=F7F8B0&gd1c=FFBD02&gd2c=070707&gd3c=efedf5&md1c=FFFE78&md2c=a785ab&md3c=FBFD02&maturity=216&costume=&size=200


https://www.sylestia.com/image_builder_pet.php?species=griffi&breed=sylesti&gender=male&gd1=HH&gd2=AA&gd3=AA&md1=FF&md2=FF&md3=NN&ec=7B05AF&c1=010301&c2=271805&c3=F7F8B0&gd1c=FFBD02&gd2c=070707&gd3c=efedf5&md1c=FFFE78&md2c=a785ab&md3c=FBFD02&maturity=216&costume=&size=500




You can do the same thing for avatar pictures as well.

If the picture is not from this site, ie uploaded elsewhere, you will have to go to the site where it's uploaded to change the size.

Oh thanks for the help