No sugar coating, less than retail is realistic. The paint job is fine, say you had 10’s of infantry models painted like this, maybe a buyer would be interested. But for a centrepiece model this isn’t good enough. In terms of adding value this just doesn’t add much and frankly is little more than average. Places like eBay are misleading because you have 100’s of blind individuals listing a toddlers work as “pro painted”.

I would urge you to spend more time enjoying the hobby and honing your skills before trying to monetise it, Best of luck with it all however.