Flag of Western Slovak region

Here are proposed flags for Western Slovak region, one my and two from Varpho. My friends don't like Varpho's proposals, so I created fourth proposal: yellow double cross lying on blue background. Blue background is in flag of current Trnava region, three yellow stripes are rearranged to form double cross from CoA of Nitra region. However! Why not use both double cross and setting sun? The cross stands on waves, similar as here. Incidentally, number of waves is the same as number of hills in CoA of Slovakia and in CoA of Western Slovak region. Waves are in two shades of blue, because my mom likes it. Meaning of symbols is explained in pages of previous Western Slovak flags.