How I color pokemon fan art HD

I post lots art of stuff here https://www.patreon.com/BAGINAZARD the music playback has been modded for youtube so it might sound strange. Corsair corsair graphite 380t, Seasonic SSR-600TL CORSAIR HYDRO SERIES H80i v2 AIO Liquid CPU Cooler, G.SKILL TridentZ Series 32GB (2 x 16GB) 288-Pin DDR4 SDRAM DDR4 3200 (PC4 25600) Intel Z370 Platform Desktop Intel Core i7-6700K 4GHz Quad-Core (BX80662I76700K) Processor, ASUS ROG STRIX Z270I GAMING with Intel Z270 Express Mini-ITX Motherboard - LGA1151 Socket, Samsung 860 PRO 1 TB Internal SSD - 2.5" - MZ-76P1T0BW - SATA 6Gb/s, ASUS ROG GeForce GTX 1080 Ti DirectX 12 STRIX-GTX1080TI-O11G-GAMING 11GB 352-Bit GDDR5X PCI Express 3.0 HDCP Ready Video Card monitor Acer Predator 34-inch Curved UltraWide QHD (3440 x 1440) NVIDIA G-Sync Widescreen Display (X34 bmiphz), Wacom Cintiq Pro 24": creative pen display keyboard Asus ROG Claymore Mouse Asus ROG Spatha Keyboard/Mouse Logitech k400r Micraphone Focusrite Scarlett Solo Studio 2nd Gen Audio Interface Audio Klipsch Reference Premiere RP-150M X4 Klipsch RP-250S X3 Pioneer Elite SC-LX502 7.2 Channel AV Network Receiver - Black Pioneer - Elite 100W 2.0-Ch. Amplifier - Black Kicker CompRT Car Subwoofer - 12" - Black X2