I've been working on a rough map of the Homebrew world I am making. I've never been very good at this, and I have been striving for a look that makes the world I am creating feel "natural". If someone were to look at my planet from space, I'd want it to seem believable, so the shape and distribution of landmasses are important. Here is what I have so far, let me know what you think, and constructive criticism is more than welcome:
Second, I've made several attempts at constructing homebrew worlds before, most of which have bombed due to lack of motivation. (I.E. A lot of work.) However, in the past I've always tried to do a "top down" approach, building as much of the world as I can before focusing on the small details. This time I am taking a hybrid approach, combining both the bottom-up and top-down methods.
The first thing I did was construct a rough timeline (major events that took place). My timeline stretches back 30,000 years. This gave me an idea of what type of world I'd need, how many races are involved, how much landmass will be needed, etc. With that in mind I created this map. My next step will be to focus on tectonic plates, which will help me figure out where the mountains will be located. From there I can then focus on a single area of the map, adding rivers and such. My focus will then shift on building that single area of the world, giving it some wide details, expanding it's timeline, and then focusing on even smaller portions of that section of the world building outward from there. (Essentially from then on out taking the bottom-up approach.)
My main goal, and my biggest reason for always trying to use the top down approach has been for the sake of continuity. I want everything to make sense and feel believable. However, my past attempts have flopped as in addition to becoming overwhelmed, the portions of the world I created seemed "stiff" because I didn't allow it to grow organically. I am hoping to avoid that with this approach.
So, in addition to constructive criticism on my rough map I'd also like to hear from those who have constructed Homebrews of their own. Are there any methods out there that you found particularly helpful? Am I heading toward a dead end? Are there any pearls of wisdom you'd like to share?
Thanks for your time!
P.S. To give a sense of scale those large islands you see in the map are somewhat smaller than the UK.

Second, I've made several attempts at constructing homebrew worlds before, most of which have bombed due to lack of motivation. (I.E. A lot of work.) However, in the past I've always tried to do a "top down" approach, building as much of the world as I can before focusing on the small details. This time I am taking a hybrid approach, combining both the bottom-up and top-down methods.
The first thing I did was construct a rough timeline (major events that took place). My timeline stretches back 30,000 years. This gave me an idea of what type of world I'd need, how many races are involved, how much landmass will be needed, etc. With that in mind I created this map. My next step will be to focus on tectonic plates, which will help me figure out where the mountains will be located. From there I can then focus on a single area of the map, adding rivers and such. My focus will then shift on building that single area of the world, giving it some wide details, expanding it's timeline, and then focusing on even smaller portions of that section of the world building outward from there. (Essentially from then on out taking the bottom-up approach.)
My main goal, and my biggest reason for always trying to use the top down approach has been for the sake of continuity. I want everything to make sense and feel believable. However, my past attempts have flopped as in addition to becoming overwhelmed, the portions of the world I created seemed "stiff" because I didn't allow it to grow organically. I am hoping to avoid that with this approach.
So, in addition to constructive criticism on my rough map I'd also like to hear from those who have constructed Homebrews of their own. Are there any methods out there that you found particularly helpful? Am I heading toward a dead end? Are there any pearls of wisdom you'd like to share?
Thanks for your time!

P.S. To give a sense of scale those large islands you see in the map are somewhat smaller than the UK.