Hi. I like to see some game art on steemit. I hope it's OK if I give you some feedback and criticism. The 3D model itself looks quite good. Nice details, especially the roof top. :) Poly count make sens and all in all most of the Tris are useful set. The banners should have less Tris in my opinion because it's necessary to gave them such a "high" mesh density.
The textures also looks good. I totally like this hand painted style. But I think you can improve it a bit. The different materials and colors should work together. You have a very strong red on the roof top and a cold blueish stone wall and an neutral brown tone for the wood. But I think it would work better if you calibrate all material colors to each other. Here is a quick Photoshop example of what I mean.
Also a bit more color variation between the different stones, wood parts and roof tiles would bring more life to the model. Last but not least... add a little bit more light to the textures. It looks currently a bit to flat. (Another example from Pinterest.)
I've never worked with Marmoset Toolbag so I can't tell whats possible to improve the scene light but an interesting three point lightning with a mix of warm and cold colors or a GI lightning setup would improve it a lot.
But all in all you did a good job. Keep it up.
RE: # MODELLING_3 : ''Lowpoly Stylized House'' in MAYA