I haven't done much with my Space Wolves since our group stopped playing 8th edition. But this model was too nice to pass up. It's not the best example of my painting, but I'm happy with it for practice on colours, and completing a chunky vehicle in a few hours.
Things I would improve:
Spending more time on the OSL effect. I tried a couple of times before settling on this. It's not very accurate, but it conveys the effect. My attempts to make the light brighter just washed out on the surface, with lack of contrast and I couldn't find a satisfactory way of doing it. Something to practice.
Freehanding the runes. These are transfers, carefully applied, but I wasn't brave enough to try it on a gradiented surface. If I got it wrong, I'd pull my (metaphorical) hair out trying to correct the mistake.
More careful assembly. Couple of wonky donkey edges on this tank if you're looking hard enough. Definitely not a fault of the kit, but of the assembler.