Create me an image with a dark and gloomy tone for a guild cover

Create me an image with a dark and gloomy tone for a guild cover. 1. Place at the bottom of the image the following text "Welcome to Umbra Draconum". Centered text, first smaller the "Welcome to" and underneath larger and more imposing the text "Umbra Draconum". 2. Place 7 warriors in the style of World of Warcraft or Albion Online, wearing dark clothes and weapons such as axes, swords, ice and fire mage staffs, spears, bows and staffs. 3. The warrior in the center will hold a banner, with a dark yellow flag and a dark red v-shaped line in the middle, and in the center place the logo of a full black dragon. 4. Place in the background flames coming out from the ground in shades of yellow and red, keeping that dark tone. 5. From the bottom of everything should emerge the shadow of a very imposing oriental dragon, this dragon should be seen in its entirety above the banner and the 7 warriors. Do not omit the text, it is very important.