Yeah, the NS forum has limits on size, even spoilered. Either 800 or 900 pixels wide is the limit.
As for the lack of response, most on NS are probably not interested because it doesn't have 500 VLS tubes or 10 x octuple 40" gun turrets.
It generally is only the ships which make us here do massive facepalms which get 500 pages of responses. Well done drawings tend to get ignored, sadly.