My Map and need advice

[Yandor]

Well hello, and thanks for having such an awesome community, I am new as this is my first post, I've actually been here for a few weeks (maybe months now) but needless to say I never joined just looked, got ideas and information on things.

I've been drawning maps for a few years, nothing big just a thing here and there and making entire worlds out of them. I plan on writting novels and what not around them, I figure its easier to make a world and its background history then it is to create a story in the middle of an imaginary world.

This is the latest world I've been working on, its very simple and well I didn't know if I wanted to make it complicated by adding in a lot of islands (good bad?) Anyways I've never been good at placing things where they are suppose to, a lot of mountains where there should be grasslands, rivers when there should be deserts (hope you get the idea)

The first image is the entire Northern half of the world (plan on making a southern half some day) So The island arch next to Islands (below Isania)and Cairan's islands and the penisula of Cairan's mainland are part of the Tropical climate(Cairan has the jungle to help show, Lime Green) and the polar is from the Isania's top left penisula reaching up into the middle of Maug and through the middle of Sinala. The inbetween is temperate, so you can get the idea of what I'm trying to accomplish and maybe help those trying to help me.

The second image is Cairan, detailed out to what I just randomly threw in, I put some thought into it but once things got down I kind of just altered never fixed

Red - Region/Kingdom lines (each area is a providence belonging to a nation)
Green - Grassland
Dark green - Forest
Lime green - Jungle
Blue Green - Swamp
Blue - Water
Grey - Mountains
Hope thats all of them

Well in all I was hoping you guys could help me fix my map to make it more realistic or just simply better. Cairan is the most detailed part of the map I've done, and was wondering if its ok or if things could be fix, most of all I was hoping maybe some help on placing lakes and rivers on it.

Well I think thats what I wanted, haha I am sure I'll read this again and realize I was missing a few things but any help would be great, and any advice would be probably used or put into great deal of thought

P.S. The world is based on a medieval/ancient setting, so no nuclear, or sci-fi stuff =D, its magical and had gods nuture the land along for awhile, and then were killed off