Recreating/Improving the textures for an old game Thread

Hi,

I'd first like to say hello since I just joined this forum and it's my first post.

I set a goal for myself to try and remake the textures of an old game to make them more HD, mostly with the use of photoshop since my drawing skills aren't nearly good enough for something like that. Problem is, I've never really done anything like this so I was wondering if someone who's more experienced could give me a few pointers etc.

The game in question is SpellForce: Platinum edition and here is an example of a texture (slightly edited):

Would appreciate any kind of help!