The paints may be applied by brush or spray; the small spray attachment for vacuum cleaners is very convenient, especially for painting radiators.
Plastic sheathing and masking tape was not available at the end of the painting project for whatever reason, I have no idea, but you have a Paint Brush that if not cared for will eventually dry up. Last solution that works well, is to take a sopping wet rag, wrapping the Paint Brush up like that burrito you missed wrapping up earlier. This will buy you some time until either you use the paint brush again, or you can properly clean it.
One precaution: You can't paint with it in cold weather. The chemical reaction that transforms the water solution into a durable finish will not take place if the temperature is below 50°. (Conventional oil paints don't stick well in cold weather, either.)
Rajput paintings depict a number of themes, events of epics like the Ramayana and the Mahabharata, Krishna's life, beautiful landscapes, and humans. Miniatures were the preferred medium of Rajput painting, but several manuscripts also contain Rajput paintings, and paintings were even done on the walls of palaces, inner chambers of the forts, havelies, particularly, the havelis of Shekhawat.The colors extracted from certain minerals, plant sources, conch shells, and were even derived by processing precious stones, gold and silver were used. The preparation of desired colors was a lengthy process, sometimes taking weeks. Brushes used were very fine.
Primitivist (naive) artists depicted objects in a solid monumental manner, as seen by a child who perceives the world as a whole, without analyzing it and breaking into unnecessary components.
SECONDARY COLORS. When you mix two primary colors together, you get a secondary color. The secondary colors are orange, green and violet. Orange is made by mixing red with yellow. Green is made by mixing blue and yellow. Violet is made my mixing blue with red.
Alkyd is an old interior paint made newly popular by a change in solvent - a super-refined petroleum chemical that has almost no odor. It is not a water paint. You thin it and clean brushes with mineral spirits or turpentine, or, if you want to retain the odorless feature, with the new odorless solvent. (Ask the paint-store man for just that, odorless solvent).