Some very solid base assets here. Bit over saturated and there might be a bit too much contrast in the diffuse, especialy in your darks. This is a common mistake, making single assets look really cool by increasing contrast and bumping up saturation, but if you want the lighting and shadows to look better in the scene,…
I tend to agree with Ged. I'd add more color. The grass is a great start, you can keep it all earthy and such. It just needs something extra. Being an old Cathedral, let's assume that they would have decorations and banners hanging down (more than Catholics do this but its who comes to my mind) to symbolize different…
Had the same fears when i first started, that heavy tweaks to materials would start making the game chug, this really isn't the case. Best thing you can do, especially since you're learning UDK is to learn how to tweak textures in engine. It comes at virtually no cost in performance. I'd highly reccomend opening base…