"WNBD needs to find a niche with an upward trend."
IMO the uptrend potential is just fine... You talk as if WC has completely saturated the market. They have not even touched .00001% of it. They could see 8 figure revs and still just be scratching the surface. Do some DD
"I use enamel and latex paints. Warm water cleans my brushes well. The use of oil-based paints IMO, IS A MARKET SECTOR IN DEEP DECLINE."
Dont forget there are spray paints, wood stains, primers, sealants, etc, etc, etc... Go by a paint store and look at all the things that sell. WC cleans them all... Then go by an art/craft store and check that out as well... Messes happen, they are a part of life. But not everything will clean paint off your SKIN and leave it feeling soft.
Do artists get paint on their skin and dont they mostly use oil based paints? How about on their cloths, floor, etc?
Open your mind a little further.